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APA Citation Guide (7th Edition): In-Text Citation

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In-Text Citation

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What Is In-Text Citation?

In APA, in-text citations are inserted in the text of your research paper to briefly document the source of your information. Brief in-text citations point the reader to more complete information in the Reference list.

When using APA format, follow the author-date method of in-text citation. In the author-date method, the writer includes the author and date within the body of the paper and includes a corresponding reference in the Reference list. This method allows the reader to identify sources used in the paper by reviewing the author and date within the text of the paper, and then easily locate the corresponding reference in the alphabetical Reference list.

Create an in-text citation whenever you quote another work, or whenever you paraphrase another work in your own words.

In-text Citations Have Two Formats

• Parenthetical - the author name and publication date (or equivalent information) appear in parentheses. For example: Falsely balanced news coverage can distort the public's perception of expert consensus on an issue (Burnside, 2016).
• Narrative - the author name appears in running text and the date appears in parentheses immediately after the author name. For example: Burnside (2016) noted the dangers of falsely balanced news coverage.

If you are referring to an idea from another work (paraphrasing or summarizing) but NOT directly quoting the material, you only have to make reference to the author and year of publication and not the page number in your in-text reference.

If you are directly quoting or borrowing from another work, you should include the page number at the end of the parenthetical citation. For example, (Burnside, 2016, p. 199).

In-Text Citation Styles

The table below shows several examples of parenthetical and narrative citations.

Paraphrasing and Quoting: What Is the Difference?

There are two ways to integrate sources into your assignment:

• Paraphrasing  is used to show that you understand what the author wrote. You must reword the passage, expressing the ideas in your own words, and not just change a few words here and there. Make sure to also include an in-text citation.
• Quoting is copying a selection from someone else's work, phrasing it exactly as it was originally written. When quoting, place quotation marks (" ") around the selected passage to show where the quote begins and where it ends. Make sure to include an in-text citation.

Signal Phrases

If you refer to the author's name in a sentence, you do not have to include the name again as part of your in-text citation; instead, include the date after the name and the page number (if there is one) at the end of the quotation or the paraphrased section. For example:

Hunt (2011) explains that mother-infant attachment has been a leading topic of developmental research since John Bowlby found that "children raised in institutions were deficient in emotional and personality development" (p. 358).

Short Quotations

If a quotation consists of fewer than 40 words , treat it as a short quotation:

• Incorporate the quote into the text and enclose it within double quotation marks.
• Include the author, year of publication, and page number for the reference.
• For example, Smith (2019) demonstrated how to "..." (p. 112).
• For example, "..." (Smith, 2019, p. 112).

Long (Block) Quotations

If a quotation contains 40 words or more , treat it as a long (block) quotation:

• Do not use quotation marks to enclose a block quotation.
• Start a block quotation on a new line and indent the whole block 0.5 inches from the left margin.
• If there are additional paragraphs within the quotation, indent the first line of each subsequent paragraph an additional 0.5 inches.
• Double-space the entire block quotation; do not add extra space before or after it.
• Either (1) cite the source in parentheses after the quotation's final punctuation, or (2) cite the author and year in the narrative before the quotation and place only the page number in parentheses after the quotation's final punctuation. Do NOT add a period after the closing parenthesis in either case.
• See section 8.27 in the Publication Manual for examples of the block quotation.

Direct Quotation Without Page Numbers

When you quote from electronic sources that do not provide page numbers (e.g., webpages, websites, some e-books), provide readers with another way of locating the quoted passage. Use any of the following approaches that will best help readers find the quotation:

• Provide a heading or a section name.
• Provide a paragraph number (count the paragraphs manually if they are not numbered).
• Provide a heading or section name in combination with a paragraph number.

In-Text Citation for More than One Source

If you would like to cite more than one source within the same in-text citation, simply record the in-text citations as normal and separate them with a semi-colon. List the sources alphabetically by author's last name or first word used from the title if no author is given, in the same order they would appear in the Reference list. For example:

(Jones, 2015; Smith, 2014). 

( Beckworth, 2016;  "Nursing,"  2015).

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APA Style 7th Edition: Citing Your Sources

• Basics of APA Formatting

Purpose and Overview of In-text Citations

Citations for direct quotes, one work, one author, two or more authors, group authors, etcetera, multiple works by the same author(s) in the same year, citing indirect sources.

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Additional Resources

• Reference Page
• Annotated Sample Student Paper Here's a sample paper provided by APA. For every style rule, there is a comment highlighted in the paper that tells you where to find the discussion of the rule in the APA Style Manual.

APA follows an author and date of publication model for citing sources in your research paper and are presented as either narrative or parenthetical citations.  The formatting does not vary due to format type, however it may deviate from the norm due to factors such as: number of authors, organization instead of individual author, lack of author, or lack of date.  By providing the standard author and date within your paper, the reader will be able to link the information presented easily to the full citation provided in the reference list.

View examples and explanations on this page or visit the In Text Quick View for more examples.

APA encourages paraphrasing over using direct quotes.  Use direct quotes when:

• Reproducing an exact definition
• Author has said something memorably or succinctly
• When you want to respond to exact wording

When creating a citation for a direct quote, provide author, year and page number for both narrative and parenthetical citations.

Ex.  University of Southern California (2020) "direct quote from author" (p. 4)  OR  "direct quote from author" (University of Southern California, 2020, p. 4).

How to cite specific parts of a source:

Author named in text:

Social historian Richard Sennett (1980) names the tendency to come to terms with difficult experiences a "purification process" whereby "threatening or painful dissonances are warded off to preserve intact a clear and articulated image of oneself and one's place in the world" (p. 11).

Author named in parentheses:

The tendency to come to terms with difficult experiences is referred to as a "purification process" whereby "threatening or painful dissonances are warded off to preserve intact a clear and articulated image of oneself and one's place in the world" (Sennett, 1980, p. 11).

These examples © Duke University Libraries http://library.duke.edu/research/citing/within/apa.html

More than one way to cite:

Flynn (1999) stated in her treatise In a recent treatise on services (Flynn, 1999) In a 1999 treatise, Flynn stated

Subsequent references to same study in same paragraph:

In her treatise on services, Flynn (1999) stated her evaluative methods…Flynn also described

One work, multiple authors

When a work has two authors, always cite both authors' names in your text:

        Significant findings in a study of Los Angeles (McCroskey & O'Keefe, 2000)

When a citation has 3 or more authors, include the last name of the first author, followed by et al. (not italicized), and the year.

        (Nishimoto et al., 1998)

For narrative citations, use the word "and" to separate authors, for parenthetical citations, use an ampersand:

         McCroskey and O'Keefe (2000) studied Los Angeles...          (McCroskey & O'Keefe, 2000)

Groups as authors

First narrative citation: National Association of Social Workers (NASW, 1987)

Subsequent narrative citation: NASW (1987)

First text citation: (National Association of Social Workers [NASW], 1987)

Subsequent text citation: (NASW, 1987)

Works with no authors

Cite the work in your text using the first few words of the reference list entry (usually the title). Put double quotation marks around the title of an article or chapter, and italicize the title of a periodical, book, brochure or report:

The policy stated in the article (“Services for Disabled Children,” 1992)

The policy stated in the book Access to Services for Children (1995)

Specific parts of a source

Indicate the page, chapter, figure, table, or equation at the appropriate point in your text. Give page numbers for quotations, and use the abbreviations for the words page and chapter:

(Aranda & Knight, 1997, p. 344)

(Ell & Castaneda, 1998, chap. 5)

Personal communications

This format applies to emails, messages from nonarchived discussion groups, electronic bulletin boards, personal interviews, telephone conversations, etc. Do not list personal communications in your reference list as they are not recoverable by your reader. In your text, provide initials and surname of communicator and as exact a date as possible.

(M. Flynn, personal communication, September 20, 1999)

Sometimes you'll have multiple works by the same author in the same year. For instance, you may reference a number of tax documents from the same year, which would all be cited with (Internal Revenue Service, 2012).  So how do you differentiate?

In those instances, differentiate sources with a letter after the year. From the example above, the 990 form might be (Internal Revenue Service, 2012a) and the 1040 form would be (Internal Revenue Service, 2012b).  Just make sure the letters stay consistent in your reference list!

Sometimes, you will use a source that you didn't yourself read.  In those cases, the original source came from a secondary source you did read.  APA states that you should use secondary sources sparingly and may occur when "the original work is out of print, unavailable, or available only in a language that you do not understand."

When using secondary sources, indicate it by included "as cited in" as part of your in-text citation

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APA (7th Edition) Referencing Guide

• Information for EndNote Users
• Authors - Numbers, Rules and Formatting

Everything must match!

Types of citations, in-text citations, quoting, summarising and paraphrasing, example text with in-text referencing, slightly tricky in-text citations, organisation as an author, secondary citation (works referred to in other works), what do i do if there are no page numbers.

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There are two basic ways to cite someone's work in text.

In narrative citations , the authors are part of the sentence - you are referring to them by name. For example:

Becker (2013) defined gamification as giving the mechanics of principles of a game to other activities.

Cho and Castañeda (2019) noted that game-like activities are frequently used in language classes that adopt mobile and computer technologies.

In parenthetical citations , the authors are not mentioned in the sentence, just the content of their work. Place the citation at the end of the sentence or clause where you have used their information. The author's names are placed in the brackets (parentheses) with the rest of the citation details:

Gamification involves giving the mechanics or principles of a game to another activity (Becker, 2013).

Increasingly, game-like activities are frequently used in language classes that adopt mobile and computer technologies (Cho & Castañeda, 2019).

Using references in text

For APA, you use the authors' surnames only and the year in text. If you are using a direct quote, you will also need to use a page number.

Narrative citations:

If an in-text citation has the authors' names as part of the sentence (that is, outside of brackets) place the year and page numbers in brackets immediately after the name, and use 'and' between the authors' names:  Jones and Smith (2020, p. 29)

Parenthetical citations:

If an in-text citation has the authors' names in brackets use "&" between the authors' names :  (Jones & Smith, 2020, p. 29).

Note: Some lecturers want page numbers for all citations, while some only want page numbers with direct quotes. Check with your lecturer to see what you need to do for your assignment. If the direct quote starts on one page and finishes on another, include the page range (Jones & Smith, 2020, pp. 29-30).

1 author

Smith (2020) found that "the mice disappeared within minutes" (p. 29).

The author stated "the mice disappeared within minutes" (Smith, 2020, p. 29).

Jones and Smith (2020) found that "the mice disappeared within minutes" (p. 29).

The authors stated "the mice disappeared within minutes" (Jones & Smith, 2020, p. 29).

For 3 or more authors , use the first author and "et al." for all in-text citations

Green et al.'s (2019) findings indicated that the intervention was not based on evidence from clinical trials.

It appears the intervention was not based on evidence from clinical trials (Green et al., 2019).

If you cite more than one work in the same set of brackets in text , your citations will go in the same order in which they will appear in your reference list (i.e. alphabetical order, then oldest to newest for works by the same author) and be separated by a semi-colon. E.g.:

• (Corbin, 2015; James & Waterson, 2017; Smith et al., 2016).
• (Corbin, 2015; 2018)
• (Queensland Health, 2017a; 2017b)
• Use only the   surnames   of your authors   in text   (e.g., Smith & Brown, 2014) - however, if you have two authors with the same surname who have published in the same year, then you will need to use their initials to distinguish between the two of them (e.g., K. Smith, 2014; N. Smith, 2014).   Otherwise, do not use initials in text .

If your author isn't an "author".

Whoever is in the "author" position of the refence in the references list is treated like an author in text. So, for example, if you had an edited book and the editors of the book were in the "author" position at the beginning of the reference, you would treat them exactly the same way as you would an author - do not include any other information. The same applies for works where the "author" is an illustrator, producer, composer, etc.

• Summarising
• Paraphrasing

It is always a good idea to keep direct quotes to a minimum. Quoting doesn't showcase your writing ability - all it shows is that you can read (plus, lecturers hate reading assignments with a lot of quotes).

You should only use direct quotes if the exact wording is important , otherwise it is better to paraphrase.

If you feel a direct quote is appropriate, try to keep only the most important part of the quote and avoid letting it take up the entire sentence - always start or end the sentence with your own words to tie the quote back into your assignment. Long quotes (more than 40 words) are called "block quotes" and are rarely used in most subject areas (they mostly belong in Literature, History or similar subjects). Each referencing style has rules for setting out a block quote. Check with your style guide .

It has been observed that "pink fairy armadillos seem to be extremely susceptible to stress" (Superina, 2011, p. 6).

NB! Most referencing styles will require a page number to tell readers where to find the original quote.

It is a type of paraphrasing, and you will be using this frequently in your assignments, but note that summarising another person's work or argument isn't showing how you make connections or understand implications. This is preferred to quoting, but where possible try to go beyond simply summarising another person's information without "adding value".

And, remember, the words must be your own words . If you use the exact wording from the original at any time, those words must be treated as a direct quote.

All information must be cited, even if it is in your own words.

Superina (2011) observed a captive pink fairy armadillo, and noticed any variation in its environment could cause great stress.

NB! Some lecturers and citation styles want page numbers for everything you cite, others only want page numbers for direct quotes. Check with your lecturer.

Paraphrasing often involves commenting about the information at the same time, and this is where you can really show your understanding of the topic. You should try to do this within every paragraph in the body of your assignment.

When paraphrasing, it is important to remember that using a thesaurus to change every other word isn't really paraphrasing. It's patchwriting , and it's a kind of plagiarism (as you are not creating original work).

Use your own voice! You sound like you when you write - you have a distinctive style that is all your own, and when your "tone" suddenly changes for a section of your assignment, it looks highly suspicious. Your lecturer starts to wonder if you really wrote that part yourself. Make sure you have genuinely thought about how *you* would write this information, and that the paraphrasing really is in your own words.

Always cite your sources! Even if you have drawn from three different papers to write this one sentence, which is completely in your own words, you still have to cite your sources for that sentence (oh, and excellent work, by the way).

Captive pink fairy armadillos do not respond well to changes in their environment and can be easily stressed (Superina, 2011).

NB! Some lecturers and citation styles want page numbers for all citations, others only want them for direct quotes. Check with your lecturer.

This example paragraph contains mouse-over text. Run your mouse over the paragraph to see notes on formatting.

Excerpt from "The Big Fake Essay"

You can read the entire Big Fake Essay on the Writing Guide. It includes more details about academic writing and the formatting of essays.

• The Big Fake Essay
• Academic Writing Workshop

When you have multiple authors with the same surname who published in the same year:

If your authors have different initials, then include the initials:

As A. Smith (2016) noted...

...which was confirmed by J.G. Smith's (2016) study.

(A. Smith, 2016; J. G. Smith, 2016).

If your authors have the same initials, then include the name:

As Adam Smith noted...

...which was confirmed by Amy Smith's (2016) study.

(Adam Smith, 2016; Amy Smith, 2016).

Note: In your reference list, you would include the author's first name in [square brackets] after their initials:

Smith, A. [Adam]. (2016)...

Smith, A. [Amy]. (2016)...

When you have multiple works by the same author in the same year:

In your reference list, you will have arranged the works alphabetically by title (see the page on Reference Lists for more information). This decides which reference is "a", "b", "c", and so on. You cite them in text accordingly:

Asthma is the most common disease affecting the Queensland population (Queensland Health, 2017b). However, many people do not know how to manage their asthma symptoms (Queensland Health, 2017a).

When you have multiple works by the same author in different years:

Asthma is the most common disease affecting the Queensland population (Queensland Health, 2017, 2018). 

When you do not have an author, and your reference list entry begins with the title:

Use the title in place of the author's name, and place it in "quotation marks" if it is the title of an article or book chapter, or in italics if the title would go in italics in your reference list:

During the 2017 presidential inauguration, there were some moments of awkwardness ("Mrs. Obama Says ‘Lovely Frame’", 2018).

Note: You do not need to use the entire title, but a reasonable portion so that it does not end too abruptly - "Mrs. Obama Says" would be too abrupt, but the full title "Mrs. Obama Says 'Lovely Frame' in Box During Awkward Handoff" is unecessarily long. You should also use title case for titles when referring to them in the text of your work.

If there are no page numbers, you can include any of the following in the in-text citation:

• "On Australia Day 1938 William Cooper ... joined forces with Jack Patten and William Ferguson ... to hold a Day of Mourning to draw attention to the losses suffered by Aboriginal people at the hands of the whiteman" (National Museum of Australia, n.d., para. 4).
• "in 1957 news of a report by the Western Australian government provided the catalyst for a reform movement" (National Museum of Australia, n.d., The catalyst for change section, para. 1)
• "By the end of this year of intense activity over 100,000 signatures had been collected" (National Museum of Australia, n.d., "petition gathering", para. 1).

When you are citing a classical work, like the Bible or the Quran:

References to works of scripture or other classical works are treated differently to regular citations. See the APA Blog's entry for more details:

Happy Holiday Citing: Citation of Classical Works . (Please note, this document is from the 6th edition of APA).

In text citation:

If the name of the organisation first appears in a narrative citation, include the abbreviation before the year in brackets, separated with a comma. Use the official acronym/abreviation if you can find it. Otherwise check with your lecturer for permission to create your own acronyms.

Australian Bureau of Statistics (ABS, 2013) shows that...

The Queensland Department of Education (DoE, 2020) encourages students to... (please note, Queensland isn't part of the department's name, it is used in the sentence to provide clarity)

If the name of the organisation first appears in a citation in brackets, include the abbreviation in square brackets.

(Australian Bureau of Statistics [ABS], 2013)

(Department of Education [DoE], 2020)

In the second and subsequent citations, only include the abbreviation or acronym

ABS  (2013) found that ...

DoE (2020) instructs teachers to...

This is disputed ( ABS , 2013).

Resources are designed to support "emotional learning pedagogy" (DoE, 2020)

In the reference list:

Use the full name of the organisation in the reference list.

Australian Institute of Health and Welfare. (2017).  Australia's welfare 2017 . https://www.aihw.gov.au/reports/australias-welfare/australias-welfare-2017/contents/table-of-contents

Department of Education. (2020, April 22). Respectful relationships education program . Queensland Government. https://education.qld.gov.au/curriculum/stages-of-schooling/respectful-relationships

Academically, it is better to find the original source and reference that.

If you do have to quote a secondary source:

• In the text you must cite the original author of the quote and the year the original quote was written as well as the source you read it in. If you do not know the year the original citation was written, omit the year.
• In the reference list you only list the source that you actually read.

Wembley (1997, as cited in Olsen, 1999) argues that impending fuel shortages ...

Wembley claimed that "fuel shortages are likely" (1997, as cited in Olsen, 1999, pp. 10-12).

Some have noted that fuel shortages are probable in the future (Wembley, 1997, as cited in Olsen, 1999).

Olsen, M. (1999).  My career.  Gallimard.

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APA Style (7th ed.)

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In-Text Citation

• Format Your Paper

Prefer a video tutorial?

Click below to watch: .

When you use others' ideas (paraphrases) and direct quotes, you must cite your source by including:

Author's last name, publication year, (only for direct quotes) page number of the quote.

The purpose of in-text citation is to direct the reader to the full citation on the  References list , which will have the full publication details. 

You are encouraged to write your in-text citations in several ways:

Author's last name and publication year in parentheses at the end of the sentence.

Ex. There is not a strong correlation between a high GPA and students who began reading at an early age (Kahneman & Klein, 2009).

Author's name in the text with the publication year in parentheses after it.

Ex. ​Kahneman and Klein (2009) found that there is not a strong correlation between a high GPA and early readers.​

Jump to more specific examples by using the table below: 

One or Two Authors: Direct Quotes 

Include the author's last name(s), with an ampersand if needed between the two; publication date; and page number(s).

Ex. Although businesses collect a lot of information on their customers' buying patterns, "it is not enough to know how customers behave, you also need to know why" (Kahneman & Baudin, 2009, p. 522).

One or Two Authors: Paraphrasing 

Cite the author, publication year, and page numbers if needed.

Ex. Many insects and animals have a larger spectrum of color vision than humans, including ultraviolet and infrared (Gadhavi & Krupin, 2009).

Three or More Authors (see p. 266-267 in Manual)

In every citation, cite only the first author followed by "et al."

Ex. A study by Alloy et al. (2009) examines the relationship between bipolar personality and substance abuse.

No Author (see p. 264-265 in Manual)

Cite the first few words of the source's entry in the Reference list, which is usually the title. The title will be italicized if it's italicized in the References list, or if it's not italicized, put it in "quotation marks" to identify it as the title here. 

Article or Website

Ex. From 2010 to 2022, the U.S. Mint will issue quarters featuring United States National Parks ("Quarter to Feature Smokies," 2009).

Book or Report

Ex. Getting plenty of sleep is essential to academic success ( College Bound Seniors , 2008).

Quoting a Quote (see p. 277 in Manual)

If at all possible, APA tells you to find the  original source  and cite that source directly. 

However, if you cannot find the original source, you can cite the quote as a  secondary source . Cite the quoted author in the text and the author of the article at the end. In this example, Jonsen and Willse are the authors of the source that you cannot retrieve (i.e. the secondary source), and Kosek is the author of the source that you have in-hand.

Ex. Jonsen and Willse concluded "there was no direct correlation between the two factors" (Kosek, 2011).

Authors with Acronym Name (see p. 268+ in Manual)

For short names where the abbreviation would not be readily understandable, write out the name each time. For long names where the abbreviation is familiar, write out the name with the acronym in brackets for the first reference, then use just the acronym.

Ex. In 2012, approximately 1 in 68 children were diagnosed with a form of Autism Spectrum Disorder (Centers for Disease Control and Prevention [CDC], 2016).

However, the entry in the References list should still spell out the full name. 

Two Citations in One Sentence (see p. 263 in the Manual)

Order the citations alphabetically by the first author's last name. 

Ex. Several studies (Nakano et al., 1999; Gadhavi & Krupin, 2009; Walker et al., 2008) cite the need for more replication studies.

For works by the same author, order them by publication year: give the last name once and then the dates.

Personal Interviews (see p. 259 in Manual)

Only cite interviews in-text, not on the references list.

Ex. Individual researchers are not eligible for many private foundation grants, because often those funds are only given to nonprofit organizations (P. Karga, personal communication, May 3, 2019).

More questions? Check out the authoritative source: APA style blog

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APA 7th ed. Style Guide

• Formatting Your Paper
• In-text Citations
• Textual Works
• Data Sets, Software, Tests
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• Online Media

Information about in-text citations can be found in chapter 8 of the APA 7th edition Publication Manual

What is in-text citation.

In-text citation is used to give credit to the research that influenced your work. In-text citations are a shortened form of a full citation found within the body of the text. In-text citations also provide a way for the reader to match the quote with the full citation and do further research of their own. In-text citation should not hinder the reader from understanding or reading your paper.

In-text citations help you avoid plagiarism and self-plagiarism.

Components of in-text citation

In-text citations in APA format are given in author date style. You need:

• Author's last name (first initial if more than one author with same name)
• Publication date
• Page number, paragraph number, line number, etc. (direct quotes ONLY) 

When to use in-text citation?

Each quote or reference in your paper should have an in-text citation. Each in-text citation should have a corresponding full text citation in the reference list UNLESS it is a personal communication, general mention of a whole website, or quotes from research participants.

Types of Quotations

Direct quote:.

Direct quotes copy another work word for word. Use direct quotes sparingly. Direct quotes are appropriate for profound ideas or thoughts and things that cannot be said any other way. 

Short Quotation

• 40 words or less
• written inside quotation marks within the body of the text

Long Quotation

• also called a block quotation
• more than 40 words
• written as a "block" off set from the regular text 

Paraphrase:

Paraphrases are summaries of someone's thoughts, work, or ideas. A paraphrase is written in your own words and not written inside quotation marks.

In-Text Citation Examples

Additional notes:.

• example: (Blume, 1981, p. 77)
• example: ( Life Application Study Bible , 1996/2007, Genesis 1:1)
• example: ( Interpersonal Skills,  2019)
• example: (J. Williams, 2019; P. Williams, 2017)
• example: (Piaget, 1966/2000)
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How to Cite a Research Paper in APA

Last Updated: October 19, 2022 Fact Checked

This article was co-authored by wikiHow Staff . Our trained team of editors and researchers validate articles for accuracy and comprehensiveness. wikiHow's Content Management Team carefully monitors the work from our editorial staff to ensure that each article is backed by trusted research and meets our high quality standards. There are 12 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 160,651 times. Learn more...

If you’re citing a research article or paper in APA style, you’ll need to use a specific citation format that varies depending on the source. Assess whether your source is an article or report published in an academic journal or book, or whether it is an unpublished research paper, such as a print-only thesis or dissertation. Either way, your in-text citations will need to include information about the author (if available) and the date when your source was published or written.

Sample Citations

Writing an In-Text Citation

• For example, you may write, “Gardener (2008) notes, ‘There are several factors to consider about lobsters’ (p. 199).”

• For example, you may write, “‘There are several factors to consider about lobsters’ (Gardner, 2008, p. 199).” Or, “The paper claims, ‘The fallen angel trope is common in religious and non-religious texts’ (Meek & Hill, 2015, p.13-14).”
• For articles with 3-5 authors, write out the names of all the authors the first time you cite the source. For example: (Hammett, Wooster, Smith, & Charles, 1928). In subsequent citations, write only the first author’s name, followed by et al.: (Hammett et al., 1928).
• If there are 6 or more authors for the paper, include the last name of the first author listed and then write "et al." to indicate that there are more than 5 authors.
• For example, you may write, "'This is a quote' (Minaj et al., 1997, p. 45)."

• For example, you may write, “‘The risk of cervical cancer in women is rising’ (American Cancer Society, 2012, p. 2).”

• For example, you may write, “‘Shakespeare may have been a woman’ (“Radical English Literature,” 2004, p. 45).” Or, “The paper notes, ‘There is a boom in Virgin Mary imagery’ (“Art History in Italy,” 2011, p. 32).”

• For example, you may write, “‘There are several factors to consider about lobsters’ (Gardner, 2008, p. 199).” Or, “The paper claims, ‘The fallen angel trope is common in religious and non-religious texts’ (“Iconography in Italian Frescos,” 2015, p.13-14).”

• For example, you may write, “‘There are several factors to consider about lobsters’ (Gardner, 2008, p. 199).” Or, “The paper claims, ‘The fallen angel trope is common in religious and non-religious texts’ (“Iconography in Italian Frescos,” 2015, p.145-146).”

• For example, you may write, “‘The effects of food deprivation are long-term’ (Mett, 2005, para. 18).”

Creating a Reference List Citation for a Published Source

• Material on websites is also considered “published,” even if it’s not peer-reviewed or associated with a formal publishing company.
• While academic dissertations or theses that are print-only are considered unpublished, these types of documents are considered published if they’re included in an online database (such as ProQuest) or incorporated into an institutional repository.

• For example, you may write, “Gardner, L. M.” Or, “Meek, P. Q., Kendrick, L. H., & Hill, R. W.”
• If there is no author, you can list the name of the organization that published the research paper. For example, you may write, “American Cancer Society” or “The Reading Room.”
• Formally published documents that don’t list an author or that have a corporate author are typically reports or white papers .

• For example, you may write, “Gardner, L. M. (2008).” Or, “American Cancer Society. (2015).”

• For example, you may write, “Gardner, L. M. (2008). Crustaceans: Research and data.” Or, “American Cancer Society. (2015). Cervical cancer rates in women ages 20-45.”

• For example, for a journal article, you may write, “Gardner, L. M. (2008). Crustaceans: Research and data. Modern Journal of Malacostracan Research, 25, 150-305.”
• For a book chapter, you could write: “Wooster, B. W. (1937). A comparative study of modern Dutch cow creamers. In T. E. Travers (Ed.), A Detailed History of Tea Serviceware (pp. 127-155). London: Wimble Press."

• For example, you may write, “Kotb, M. A., Kamal, A. M., Aldossary, N. M., & Bedewi, M. A. (2019). Effect of vitamin D replacement on depression in multiple sclerosis patients. Multiple Sclerosis and Related Disorders, 29, 111-117. Retrieved from PubMed, https://www.ncbi.nlm.nih.gov/pubmed/30708308.
• If you’re citing a paper or article that was published online but did not come from an academic journal or database, provide information about the author (if known), the date of publication (if available), and the website where you found the article. For example: “Hill, M. (n.d.). Egypt in the Ptolemaic Period. Retrieved from https://www.metmuseum.org/toah/hd/ptol/hd_ptol.htm”

Citing Unpublished Sources in Your Reference List

• Print-only dissertations or theses.
• Articles or book chapters that are in press or have been recently prepared or submitted for publication.
• Papers that have been rejected for publication or were never intended for publication (such as student research papers or unpublished conference papers).

• If the paper is currently being prepared for publication, include the author’s name, the year when the current draft was completed, and the title of the article in italics, followed by “Manuscript in preparation.” For example: Wooster, B. W. (1932). What the well-dressed man is wearing. Manuscript in preparation.
• If the paper has been submitted for publication, format the citation the same way as if it were in preparation, but instead follow the title with “Manuscript submitted for publication.” For example: Wooster, B. W. (1932). What the well-dressed man is wearing. Manuscript submitted for publication.
• If the paper has been accepted for publication but is not yet published, replace the date with “in press.” Do not italicize the paper title, but do include the title of the periodical or book in which it will be published and italicize that. For example: Wooster, B. W. (in press). What the well-dressed man is wearing. Milady’s Boudoir.

• If the paper was written for a conference but never published, your citation should look like this: Riker, W. T. (2019, March). Traditional methods for the preparation of spiny lobe-fish. Paper presented at the 325th Annual Intergalactic Culinary Conference, San Francisco, CA.
• For an unpublished paper written by a student for a class, include details about the institution where the paper was written. For example: Crusher, B. H. (2019). A typology of Cardassian skin diseases. Unpublished manuscript, Department of External Medicine, Starfleet Academy, San Francisco, CA.

• For example, you may write, “Pendlebottom, R. H. (2011). Iconography in Italian Frescos (Unpublished doctoral dissertation). New York University, New York, United States.”

Community Q&A

• If you want certain information to stand out in the research paper, then you can consider using a block quote. Thanks Helpful 0 Not Helpful 0

You Might Also Like

• ↑ https://libraryguides.vu.edu.au/apa-referencing/7JournalArticles
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/in_text_citations_author_authors.html
• ↑ https://bowvalleycollege.libguides.com/c.php?g=714519&p=5093747
• ↑ https://guides.libraries.psu.edu/apaquickguide/intext
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/in_text_citations_the_basics.html
• ↑ https://libguides.southernct.edu/c.php?g=7125&p=34582#1951239
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_electronic_sources.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_articles_in_periodicals.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_books.html
• ↑ https://morlingcollege.libguides.com/apareferencing/unpublished-or-informally-published-work
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/general_apa_faqs.html
• ↑ https://owl.purdue.edu/owl/research_and_citation/apa_style/apa_formatting_and_style_guide/reference_list_other_print_sources.html

About This Article

To cite a research paper in-text in APA, name the author in the text to introduce the quote and put the publication date for the text in parentheses. At the end of your quote, put the page number in parentheses. If you don’t mention the author in your prose, include them in the citation. Start the citation, which should come at the end of the quote, by listing the author’s last name, the year of publication, and the page number. Make sure to put all of this information in parentheses. If there’s no author, use the name of the organization that published the paper or the first few words from the title. To learn how to cite published and unpublished sources in your reference list, keep reading! Did this summary help you? Yes No

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APA In-Text Citations for Research Writing

Why Use In-Text Citations?

When writing a journal article, literature review, convention paper, or any other academic document, authors must include in-text citations whenever they refer to, summarize, paraphrase, or quote from another source. In addition, every time a work is cited within a paper (in APA style, a parenthetical citation), a corresponding entry must be included in the reference list.

How to Cite a Research Paper Using In-Text Citations

The rationale behind citing other people’s publications in your own manuscript is that you want to avoid intellectual dishonesty by giving credit to whoever reported a finding first or invented a specific technique. This is not only an ethical question, as being “sloppy” with your sources can easily be considered plagiarism (and even self-plagiarism , if you fail to refer to your own work), which can have legal consequences and damage your reputation.

General rules for what information should be provided when citing sources in a research paper vary across fields and depend on the type of source (e.g., books, journal articles, patents, conference proceedings, websites, etc.). We are not going into such differences here but will focus on the correct way of referencing other people’s research in your own paper according to one of the most common styles used to cite sources within the social sciences and in several other academic disciplines , that is, APA (American Psychological Association) style .

In research papers, in-text citations are most commonly used in the Introduction and Discussion Results sections. The following guidelines and examples are taken from the APA Publication Manual, 6th edition, 2nd printing , which details rules and application of APA style in research papers, including in-text citations, endnotes/footnotes, and references. For more information, consult the APA Style Manual website .

This resource provides detailed guidelines for citing sources in your paper and includes examples of in-text citations for reference by research authors. Before submitting your manuscript to a journal or publisher, be sure to use our free APA citation generator for your references and in-text citations.

APA Citation Rules: The Basics

Order and structure of in-text citation content.

When using APA format, follow the “author-date” method of in-text citation. Write the author’s last name and publication year for the source in parentheses and separate these pieces of information with a comma.

When referring to external work or referencing an entire work but not directly quoting the material, you only need to make a reference to the author and year of publication and not the page number in your citation.

The results of the first enzyme study (Chen et al., 2014) revealed several relationships.

If you mention the name of the author of the work in the sentence or earlier in the paragraph, you only need to include the year of publication in the citation.

Chen (2014) discusses several relationships revealed in this study.

Verb tense used in referring to other works

APA style requires authors to use past tense or present perfect tense (NOT present tense) when using signal phrases to refer to or discuss previous research (have a look at this article for more details on the correct tenses for different parts of a research paper ).

Radnitz (1995) found… / Radnitz (1995) has found…

Placement of in-text citations in the sentence (no quotation)

When referring to a specific work or works, place the citation (publication date only) directly after the author of the study referenced.

Klinge and Rogers (2010) found that mirroring is instrumental in developments of performative gender roles.

When giving information that reflects the results or implications of previous work, place the citation (author and publication date) at the end of the sentence.

Mirroring has been found to be instrumental in the development of performative gender roles (Klinge and Rogers, 2010).

Capitalization

Always capitalize author names and initials in in-text citations.

(r. kazinsky, 2014)    (R. Kazinsky, 2014)

In-Text Citation Rules for Short Quotations

When quoting directly from a work, include the author, publication year, and page number of the reference (preceded by “p.”).

Method 1 : Introduce the quotation with a signal phrase that includes the author’s last name; the publication year will follow in parentheses. Include the page number in parentheses at the end of the quoted text. Note that the quotation marks surround the text only, and not the parenthetical citation.

According to Khan (1976), “Graduate students tend to apply more diverse methods during their first two years of research” (p. 45). Khan (1976) noted that “graduate students tend to apply more diverse methods during their first two years of research” (p. 45), a fact that has profound implications for research departments.

Method 2 : If the author is absent in the signal phrase, include the author’s last name, the publication year, and the page number together in parentheses after the quoted text.

Researchers noted that “graduate students tend to apply more diverse methods during their first two years of research” (Khan, 1976, p. 45), but they did not offer a suggestion as to the cause.

In-text Citation Rules for Long Quotations

Long direct quotations are those with at least 40 words of quoted text in a row. Long quotes should be placed in a separate block of lines without quotation marks, similar to creating a new paragraph. Begin the quotation on a new line and indent 0.5in/1.27cm from the left margin. Type the entire quotation within these new margins using double-spacing. Include the parenthetical citation after the final punctuation mark.

Khan’s (1976) study found the following: Graduate students tend to apply more diverse methods during their first two years of research, especially when conducting research in teams of three or fewer with no senior researchers    present. This tendency could be attributed to either a misunderstanding of correct methodology or to a feeling of freedom to explore different approaches that the researchers have yet to employ. (p. 45)

Summarizing and Paraphrasing Other Works

When  paraphrasing another work , you only need to cite the author and year of publication in your in-text citation. It may be a good idea to include the page number as well if the paraphrased information is located on a specific page of the original text. APA guidelines encourage this inclusion but do not require it.

According to Khan (1976), new researchers tend to use more diverse methodologies. New researchers tend to use more diverse methodologies (Khan, 1976, p. 45).

Common Signal Phrases for Introducing External Works

• According to Johnson (publication year)…
• As Johnson (publication year) has noted…
• Johnson and Smith (publication year) contend that…
• As Johnson’s (2011) study revealed…

Citing Works by Multiple Authors/Editors

When making an in-text citation of works by multiple authors, there are specific rules to follow depending on the number of authors of a publication and the number of times you cite the same works.

Citing Multiple Works in One In-text Citation

When citing more than one source in the same in-text citation, list all sources in the standard way and separate them with a semi-colon. List the sources alphabetically (by author’s last name or by title if no author is given) in the order they appear in the reference list.

(Marsh, 1997; Johnson, 2002). (Kazinsky, 2017; “Three Different Roads,”  2013).

Citing Works by the Same Author with the Same Publication Year

When citing two or more sources with the same author and year of publication, assign lowercase letters directly after the year of publication (a, b, c) according to the alphabetical order of titles. You will use the same alphabetical designations in your in-text citations that you do in your reference list.

The incidence of West Nile virus in Florida increased between 2002 and 2004 (Dickens, 2014a). According to Dickens (2014b), “these viral infections were precipitated by record levels of rainfall around the peninsula” (p. 150).

Citing a Work Quoted in another Source

Work quoted or paraphrased in another text is called a “secondary source.” While in your reference list you must cite the primary source as well, in your in-text citation you will add the words “as cited in” followed by the secondary source. For example, if a review article by Franklin you are citing includes a useful quote by Adams that supports your paper, your in-text citation would look like this:

According to a study by Adams (as cited in Franklin, 2016), 25% of all US federal prisoners have been diagnosed with some form of social disorder. Adams (as cited in Franklin) contends that this statistic “reflects the dehumanizing conditions of most federal institutions” (p. 76).

Citing Web Pages

Entire website.

When citing an entire website (with no specific webpage or article given), simply provide the title and web address within the text of your paper. No citation is needed in the References.

The American Psychological Association includes detailed information on how to apply APA citation (http://www.apa.org).

Webpage with author(s)

A webpage with an individual author or authors should be cited in the same way as other texts, with the name or names written first, followed by the publication year.

There were 523 new cases reported in 2011 alone (Kristoff, 2012).

Webpage with a group author

Treat group authors as individual authors in in-text citations, but instead of the author’s last name, include the name of the group.

Claustrophobia afflicts one in five Britons (The Surrey Group, 2003).

Webpage with missing information

Even when some central information is missing from a website (e.g., no author, date, or webpage title), you may still cite it as a source if you use the correct formatting. For information on how to cite a website with missing information, visit the APA Style Blog post on  Missing Pieces .

Citing social media sources

For a more comprehensive explanation of social media citation guidelines, visit the APA Style Blog post on  How to Cite Social Media in APA Style .

And when submitting your finished AP document to journals or for a class assignment, be sure to get professional English editing services , including academic editing , manuscript editing , and research paper editing services . Professional editors with experience in APA, AMA, MLA, and other popular style guides will make sure that your document’s citations and references conform to the journal of your choice.

Wordvice Resources

Wordvice provides a variety of other articles on topics such as the number of references your manuscript should contain , different citation styles if your target style does not use APA, and how to paraphrase correctly when citing sources in your paper, as well as more general advice on how to write research papers on the Wordvice academic resources website .

Penn State University Libraries

Apa quick citation guide 6th edition.

• In-text Citation
• Citing Web Pages and Social Media
• Citing Articles
• Citing Books
• Citing Business Reports
• Other Formats
• APA Style Quiz

Using In-text Citation

Include an in-text citation when you refer to, summarize, paraphrase, or quote from another source. For every in-text citation in your paper, there must be a corresponding entry in your reference list.

APA in-text citation style uses the author's last name and the year of publication, for example: (Field, 2005). For direct quotations, include the page number as well, for example: (Field, 2005, p. 14). For sources such as websites and e-books that have no page numbers , use a paragraph number. More information on citing sources without pagination is given on the APA Style web page .

Example paragraph with in-text citation

A few researchers in the linguistics field have developed training programs designed to improve native speakers' ability to understand accented speech (Derwing, Rossiter, & Munro, 2002; Thomas, 2004). Their training techniques are based on the research described above indicating that comprehension improves with exposure to non-native speech. Derwing et al. (2002) conducted their training with students preparing to be social workers, but note that other professionals who work with non-native speakers could benefit from a similar program.

Derwing, T. M., Rossiter, M. J., & Munro, M. J. (2002). Teaching native speakers to listen to foreign-accented speech.  Journal of Multilingual and Multicultural Development, 23(4), 245-259.

Thomas, H. K. (2004).  Training strategies for improving listeners' comprehension of foreign-accented speech  (Doctoral dissertation). University of Colorado, Boulder.

Citing Web Pages In Text

Cite web pages in text as you would any other source, using the author and date if known. If the author is not known, use the title and the date as the in-text citation (for long titles just use the first few words). Your in-text citation should lead your reader to the corresponding entry in the reference list. For sources with no date use n.d. (for no date) in place of the year: (Smith, n.d.). Below are examples of using in-text citation with web pages.

Web page with author:

In-text citation

Role-play can help children learn techniques for coping with bullying (Kraiser, 2011).

Reference entry

Kraizer, S. (2011). Preventing bullying. Retrieved from http://safechild.org/categoryparents/preventing-bullying/

Web page with no author:

The term Nittany Lion was coined by Penn State football player Joe Mason in 1904 ("All things Nittany," 2006).

All things Nittany. (2006). Retrieved from http://www.psu.edu/ur/about/nittanymascot.html

Web page with no date:

Establishing regular routines, such as exercise, can help survivors of disasters recover from trauma (American Psychological Association [APA], n.d.).

American Psychological Association. (n.d.). Recovering emotionally from disaster. Retrieved from http://www.apa.org/helpcenter/recovering-disasters.aspx

General Guidelines

In-text references should immediately follow the title, word, or phrase to which they are directly relevant, rather than appearing at the end of long clauses or sentences. In-text references should always precede punctuation marks. Below are examples of using in-text citation.

Author's name in parentheses:

One study found that the most important element in comprehending non-native speech is familiarity with the topic (Gass & Varonis, 1984).

Author's name part of narrative:

Gass and Varonis (1984) found that the most important element in comprehending non-native speech is familiarity with the topic.

Group as author: First citation: (American Psychological Association [APA], 2015) Subsequent citation: (APA, 2015)

Multiple works: (separate each work with semi-colons)

Research shows that listening to a particular accent improves comprehension of accented speech in general (Gass & Varonis, 1984; Krech Thomas, 2004).

Direct quote: (include page number and place quotation marks around the direct quote)

One study found that “the listener's familiarity with the topic of discourse greatly facilitates the interpretation of the entire message” (Gass & Varonis, 1984, p. 85).

Gass and Varonis (1984) found that “the listener’s familiarity with the topic of discourse greatly facilitates the interpretation of the entire message” (p. 85).

Note:  For direct quotations of more than 40 words , display the quote as an indented block of text without quotation marks and include the authors’ names, year, and page number in parentheses at the end of the quote. For example:

This suggests that familiarity with nonnative speech in general, although it is clearly not as important a variable as topic familiarity, may indeed have some effect. That is, prior experience with nonnative speech, such as that gained by listening to the reading, facilitates comprehension. (Gass & Varonis, 1984, p. 77)

Works by Multiple Authors

APA style has specific rules for citing works by multiple authors. Use the following guidelines to determine how to correctly cite works by multiple authors in text.

Note: When using multiple authors' names as part of your narrative, rather than in parentheses, always spell out the word and. For multiple authors' names within a parenthetic citation, use &.

One author: (Field, 2005)

Two authors: (Gass & Varonis, 1984)

Three to five authors: First citation: (Tremblay, Richer, Lachance, & Cote, 2010) Subsequent citations: (Tremblay et al., 2010)

Six or more authors: (Norris-Shortle et al., 2006)

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Citation Styles

What is apa, how do i cite..., in-text citation, formatting your paper.

Sample Papers

• APA 7 Student Sample Paper - with notes
• APA Example Paper

Get Help 24/7

APA style was created by the American Psychological Association. It is a set of rules for publications, including research papers.

In APA, you must "cite" sources that you have paraphrased, quoted or otherwise used to write your research paper. Cite your sources in two places:

• In the body of your paper where you add a brief in-text citation.
• In the Reference list at the end of your paper where you give more complete information for the source.

Learn more about APA Style from Purdue OWL  or you can look at examples from APA Style .

• Art, Infographics, Maps, Photographs/Images
• Books & Ebooks
• Dissertations/Thesis
• Encyclopedias & Dictionaries
• Government Documents
• Journal Article
• Social Media

Art (from a Museum):

Artist, A. A. (year).  Title of work  [Medium]. Museum Name, Museum Location.

Monet, C. (1900).  The water lily pond  [Painting]. Museum of Fine Arts, Boston, MA, United States.

Art (online):

Artist, A. A. (year).  Title of work  [Medium]. Museum Name, Museum Location. https://xxxxxx

Monet, C. (1900).  The water lily pond  [Painting]. Museum of Fine Arts, Boston, MA, United States.  https://collections.mfa.org/objects/33697

Graphs and Chart (from an article)

Figure X . Description of the image or title of the image. From "Title of Article," by Article Author's First Initial. Second Initial. Last Name, year, day, (for a magazine) or year (for a journal), Title of Magazine or Journal, volume number, page(s). Copyright year by name of copyright holder.

Figure 1 . A proposed potential therapeutic algorithm based on current studies and clinical trials. From "Treatment for COVID-19: An overview," by Stasi, C., Fallani, S., Voller, F., & Silvestri, C, 2020,  European journal of pharmacology , 889, 173644. Copyright 2020 by Elsevier.

Infographic:

Artist, A. A. (year).  Title of infographic  [Infographic]. Source. https://xxxxxx

CDC. (2020).  Disability Impacts All of Us Infographic [Infographic]. Centers for Disease and Control Prevention. https://www.cdc.gov/ncbddd/disabilityandhealth/images/disability-impacts-all1185px.png

Photographs/Images:

Photographer, A. A. (Date).  Title of photograph  [Photograph]. Source. https://xxxxxx

Adler, G. S. (1968).  April 23, 1968 Crowd Sundial Rally  [Photograph]. Columbia University Libraries. https://dlc.library.columbia.edu/catalog/cul:fbg79cnpkb

One Author:

Author's Last Name, First Initial. Second Initial if Given. (Year of Publication).  Title of book: Subtitle if given  (edition if given and is not first edition). Publisher Name often shortened.

Kottler, J.A. (2000). Doing good: passion and commitment for helping others.  Brunner-Routledge.

Two or More Authors:

Last Name of First Author, First Initial. Second Initial if Given, & Last Name of Second Author, First Initial. Second Initial if Given. (Year of Publication).  Title of book: Subtitle if given  (edition if given and is not first edition). Publisher Name often shortened. 

Case, L. P., Daristotle, L., Hayek, M. G., & Raash, M. F. (2011).  Canine and feline nutrition: A resource for companion animal professionals  (3rd ed.). Mosby.

Group or Company:

Name of Corporate Author. (Year of Publication).  Title of book: Subtitle if given  (edition if given and is not first edition). Publisher Name often shortened.

American Psychological Association. (2020).  Publication manual of the American Psychological Association  (7th ed.). https://doi.org/10.1037/0000165-000

Editor's Last Name, First Initial. Second Initial if Given. (Ed.). (Year of Publication).  Title of book: Subtitle if given  (edition if given and is not first edition). Publisher Name often shortened. 

Miller, J., & Smith, T. (Eds.). (1996).  Cape Cod stories: Tales from Cape Cod, Nantucket, and Martha's Vineyard . Chronicle Books.

Author's Last Name, First Initial. Second Initial if Given. (Year of Publication).  Title of dissertation (Publication No, if applicable) [Type of Paper, name of the University]. Source Name or Repository Name. URL.

Kabir, J. M. (2016).  Factors influencing customer satisfaction at a fast food hamburger chain: The relationship between customer satisfaction and customer loyalty  (Publication No. 10169573) [Doctoral dissertation, Wilmington University]. ProQuest Dissertations & Theses Global.

Zambrano-Vazquez, L. (2016).  The interaction of state and trait worry on response monitoring in those with worry and obsessive-compulsive symptoms  [Doctoral dissertation, University of Arizona]. UA Campus Repository.  https://repository.arizona.edu/handle/10150/620615

• Author.  Note: List the author's last name and initials as Author, A. A. There is usually only one author for a thesis or dissertation, you don't need to include any faculty advisers.
• (Year, Month Date).  Note: Provide as specific a date as is available.
• Title of the dissertation or thesis  [Doctoral dissertation or Master's thesis, Name of University].  Note: For works that stand alone (e.g. books, dissertations, theses), italicize the title. Only capitalize the first word of the title and subtitle and any proper nouns. The title page will indicate whether it's a Doctoral dissertation or Master's thesis and list the name of the university granting the degree.
• Source.  Note: Include the name of the database or institutional repository where you can access the work (e.g. ProQuest Dissertations & Theses Global, PQDT Open, Scholar Commons).
• URL  Note: If available it's available.

Online Encyclopedia & Dictionary:

Name of Group Author. (Year of Publication). Title of entry. In Editor's First Initial. Second Initial if given. Last Name (Ed.),  Name of encyclopedia or dictionary  (edition if given and is not first edition). Retrieved from date URL

Encyclopedia Britannica. (n.d.).  Olive . Britannica Academic. Retrieved November 1, 2021, from https://academic-eb-com.libproxy.scu.edu/levels/collegiate/article/olive/57030

Encyclopedia & Dictionary from Print (book):

Author's Last Name, First Initial. Second Initial if Given. (Year of Publication). Title of entry. In Editor's First Initial. Second Initial if given. Last Name (Ed.),  Name of encyclopedia or dictionary  (Volume number, pp. first page of entry-last page of entry). Publisher Name often shortened.

King, P. N., & Wester L. (1998). Hawaii. In  The world book encyclopedia  (Vol. 9, pp. 88-110). World Book.

From a Website:

Name of Government Department, Agency or Committee. (Year of Publication, Month Day).  Title of document: Subtitle if given  (edition if given and is not first edition). Publisher Name. URL

Ontario Ministry of Children and Youth Services. (2010, April 27). Your preschool child's speech and language development. http://www.children.gov.on.ca/htdocs/English/topics/earlychildhood/ speechlanguage/brochure_preschool.aspx

Centers for Medicare & Medicaid Services. (December, 2020).  Improving Health Care For Adults With Disabilities: An Overview Of Federal Data Sources  [Issue Brief]. https://www.cms.gov/files/document/federaldatadisability508.pdf

Print Document:

Name of Government Department, Agency or Committee. (Year of Publication).  Title of document: Subtitle if given  (edition if given and is not first edition). Publisher Name.

Health Council of Canada. (2007).  Canadians' experience with chronic illness care in 2007 .

Notes for Reports, Policy Briefs, Press Release, etc:

• Author or Name of Group (If the group name has many layers, use the most specific agency as the author). The parent agencies will be listed as the publisher. Note:  You can abbreviate agency names in-text, but  do not abbreviate agency names in the list of references .
• Title of Report or Title of Report (Report No. __)
• If it's not a report, but something fuzzier, like a press release, policy brief, etc. (so-called "gray literature), include a description in brackets. e.g., [Press Release] following the title.
• Publisher name (unless the publisher IS the group author)

Tip: It is often easier to identify the relevant elements of the citation by consulting a catalog entry (worldcat or your library's catalog) or by downloading the full report as a pdf and checking the cover pages.

Author's Last Name, First Initial. Second Initial if Given. (Year of Publication). Title of article: Subtitle if any.  Name of Journal, Volume Number (Issue Number), first page number-last page number. https://doi number

Bailey, N. W. (2012). Evolutionary models of extended phenotypes.  Trends in Ecology & Evolution, 27 (3), 561-569. https://doi.org/10.1037/rev0000126

Two to 20 authors:

Author's Last Name, First Initial. Second Initial if Given., & Last Name of Second Author, First Initial. Second Initial if Given. (Year of Publication). Title of article: Subtitle if any.  Name of Journal, Volume Number (Issue Number), first page number-last page number. https://doi number 

Kerui Du, Shuai Shao, & Zheming Yan. (2021). Urban Residential Energy Demand and Rebound Effect in China: A Stochastic Energy Demand Frontier Approach.  Energy Journal ,  42 (4), 175–193. https://doi-org.libproxy.scu.edu/10.5547/01956574.42.4.kdu

21 or More Authors:

Kalnay, E., Kanamitsu, M., Kistler, R., Collins, W., Deaven, D., Gandin, L., Iredell, M., Saha, J., Mo, K. C., Ropelewski, C., Wang, J., Leetma, A., . . . Joseph, D. (1996). The NCEP/NCAR 40-year reanalysis project.  Bulletin of the American Meteorological Society ,  77 (3), 437-471. https://doi.org/10.1175/1520-0477(1996)077<0437:TNYRP>2.0.CO;2

Newspaper Article Online:

Author's Last Name, First Initial. Second Initial if Given. (Year of Publication, Month Day if Given). Title of article: Subtitle if any.  Name of Newspaper . URL

Callahan, A. (2021, November 30). Why does coffee make you poop? New York Times. https://www.nytimes.com/2021/11/30/well/eat/why-does-coffee-make-you-poop.html

Newspaper Print:

Author's Last Name, First Initial. Second Initial if Given. (Year of Publication, Month Day if Given). Title of article: Subtitle if any.  Name of Newspaper , p. SectionPage if given.

Schwartz, J. (1993, September 30). Obesity affects economic, social status.  The Washington Post , A1, A4.

Author's Last Name, First initial. Second initial. Or, username if real name is not provided. (Year blog post was published, Month Day). Title of the blog post.  Title of Blog.  URL

Rudzate, A. (2022 February 21). How to Stay on Task and Avoid Distractions.  Lifehack. https://www.lifehack.org/884657/stay-on-task

Director/Producer/Host's Last Name, First initial. Second initial if Given. (Role in the production e.g. Host, Director, Producer) (Year podcast was released, Month Day if given). Title of podcast episode: Subtitle if given (episode number if known) [Audio podcast episode]. In  Title of Podcast . Publisher. URL if known

Prime, K. (Host). (2019), March 29). For whom the cowbell tolls [Audio podcast episode]. In  Radiolab.  WNYC Studios. https://www.wnycstudios.org/story/whom-cowbell-tolls

Streaming Video (YouTube, Vimeo, Hulu):

Last Name, First Initial. Second Initial. of person who posted the video if known. [User name that posted the video] . (Year video was posted, Month Day).  Title of video  [Video]. Name of Streaming Service. URL

Green, H. [Crash Course]. (2012, December 18).  Ecosystem Ecology: Links in the Chain - Crash Course Ecology #7  [Video]. Youtube. https://www.youtube.com/watch?v=v6ubvEJ3KGM

Twitter (Tweet):

Lastname, F. M. or Name of Group [@username]. (Year, Month Date). Content of the post up to the first 20 words [Tweet]. Site Name. URL

National Geographic [@NatGeo]. (2020, January 12). Scientists knew African grays are clever, but now they’ve been documented assisting other members of their species—even strangers [Tweet; thumbnail link to article]. Twitter. https://twitter.com/NatGeo/status/1216346352063537154

Corporate or Group as Author:

Corporation/Group/Organization's Name. (Year website was last updated/published, Month Day if given).  Title of page: Subtitle  (if any). Website Name. URL

American Society for the Prevention of Cruelty to Animals. (2019, November 21).  Justice served: Case closed for over 40 dogfighting victims . https://www.aspca.org/news/justice-served-case-closed-over-40-dogfighting-victims

Author's Last Name, First Initial. Second Initial if Given. (Year webpage was last updated/published, Month Day if given).  Title of page: Subtitle (if any) . Website name. URL

Lynch, G., Legar H. S. (2020, January 16). Best gadgets 2020: the top tech you can buy right now . techradar. https://www.techradar.com/news/best-gadgets

Learn more about In-Text Citations: Basics

Learn more about In-Text Citations: Author/Authors

Follow these guidelines to format your paper in APA style, unless your professor has a specific preference. Your paper should be in three major sections: the title page, main body, and the references list. If you are writing a professional paper, then there should be 4 major sections: the title page, abstract, main body, and the references list. Here are some other guidelines you'll need to follow:

• double-space
• 1" margins on all sides
• student paper: page number
• professional paper: "TITLE OF YOUR PAPER" then page number
• 12-point Times New Roman
• 11-point Georgia
• 11-point Calibri
• 11-point Arial
• 10-point Lucida Sans Unicode
• 11-point Computer Modern

Learn more about General Format from Purdue OWL.

• Next: Chicago >>
• Last Updated: Jun 4, 2024 3:44 PM
• URL: https://libguides.scu.edu/citationstyles

Home / Guides / Citation Guides / How to Cite Sources

How to Cite Sources

Here is a complete list for how to cite sources. Most of these guides present citation guidance and examples in MLA, APA, and Chicago.

If you’re looking for general information on MLA or APA citations , the EasyBib Writing Center was designed for you! It has articles on what’s needed in an MLA in-text citation , how to format an APA paper, what an MLA annotated bibliography is, making an MLA works cited page, and much more!

MLA Format Citation Examples

The Modern Language Association created the MLA Style, currently in its 9th edition, to provide researchers with guidelines for writing and documenting scholarly borrowings.  Most often used in the humanities, MLA style (or MLA format ) has been adopted and used by numerous other disciplines, in multiple parts of the world.

MLA provides standard rules to follow so that most research papers are formatted in a similar manner. This makes it easier for readers to comprehend the information. The MLA in-text citation guidelines, MLA works cited standards, and MLA annotated bibliography instructions provide scholars with the information they need to properly cite sources in their research papers, articles, and assignments.

• Book Chapter
• Conference Paper
• Documentary
• Encyclopedia
• Google Images
• Kindle Book
• Memorial Inscription
• Museum Exhibit
• Painting or Artwork
• PowerPoint Presentation
• Sheet Music
• Thesis or Dissertation
• YouTube Video

APA Format Citation Examples

The American Psychological Association created the APA citation style in 1929 as a way to help psychologists, anthropologists, and even business managers establish one common way to cite sources and present content.

APA is used when citing sources for academic articles such as journals, and is intended to help readers better comprehend content, and to avoid language bias wherever possible. The APA style (or APA format ) is now in its 7th edition, and provides citation style guides for virtually any type of resource.

Chicago Style Citation Examples

The Chicago/Turabian style of citing sources is generally used when citing sources for humanities papers, and is best known for its requirement that writers place bibliographic citations at the bottom of a page (in Chicago-format footnotes ) or at the end of a paper (endnotes).

The Turabian and Chicago citation styles are almost identical, but the Turabian style is geared towards student published papers such as theses and dissertations, while the Chicago style provides guidelines for all types of publications. This is why you’ll commonly see Chicago style and Turabian style presented together. The Chicago Manual of Style is currently in its 17th edition, and Turabian’s A Manual for Writers of Research Papers, Theses, and Dissertations is in its 8th edition.

Citing Specific Sources or Events

• Declaration of Independence
• Gettysburg Address
• Martin Luther King Jr. Speech
• President Obama’s Farewell Address
• President Trump’s Inauguration Speech
• White House Press Briefing

Additional FAQs

• Citing Archived Contributors
• Citing a Blog
• Citing a Book Chapter
• Citing a Source in a Foreign Language
• Citing an Image
• Citing a Song
• Citing Special Contributors
• Citing a Translated Article
• Citing a Tweet

6 Interesting Citation Facts

The world of citations may seem cut and dry, but there’s more to them than just specific capitalization rules, MLA in-text citations , and other formatting specifications. Citations have been helping researches document their sources for hundreds of years, and are a great way to learn more about a particular subject area.

Ever wonder what sets all the different styles apart, or how they came to be in the first place? Read on for some interesting facts about citations!

1. There are Over 7,000 Different Citation Styles

You may be familiar with MLA and APA citation styles, but there are actually thousands of citation styles used for all different academic disciplines all across the world. Deciding which one to use can be difficult, so be sure to ask you instructor which one you should be using for your next paper.

2. Some Citation Styles are Named After People

While a majority of citation styles are named for the specific organizations that publish them (i.e. APA is published by the American Psychological Association, and MLA format is named for the Modern Language Association), some are actually named after individuals. The most well-known example of this is perhaps Turabian style, named for Kate L. Turabian, an American educator and writer. She developed this style as a condensed version of the Chicago Manual of Style in order to present a more concise set of rules to students.

3. There are Some Really Specific and Uniquely Named Citation Styles

How specific can citation styles get? The answer is very. For example, the “Flavour and Fragrance Journal” style is based on a bimonthly, peer-reviewed scientific journal published since 1985 by John Wiley & Sons. It publishes original research articles, reviews and special reports on all aspects of flavor and fragrance. Another example is “Nordic Pulp and Paper Research,” a style used by an international scientific magazine covering science and technology for the areas of wood or bio-mass constituents.

4. More citations were created on  EasyBib.com  in the first quarter of 2018 than there are people in California.

The US Census Bureau estimates that approximately 39.5 million people live in the state of California. Meanwhile, about 43 million citations were made on EasyBib from January to March of 2018. That’s a lot of citations.

5. “Citations” is a Word With a Long History

The word “citations” can be traced back literally thousands of years to the Latin word “citare” meaning “to summon, urge, call; put in sudden motion, call forward; rouse, excite.” The word then took on its more modern meaning and relevance to writing papers in the 1600s, where it became known as the “act of citing or quoting a passage from a book, etc.”

6. Citation Styles are Always Changing

The concept of citations always stays the same. It is a means of preventing plagiarism and demonstrating where you relied on outside sources. The specific style rules, however, can and do change regularly. For example, in 2018 alone, 46 new citation styles were introduced , and 106 updates were made to exiting styles. At EasyBib, we are always on the lookout for ways to improve our styles and opportunities to add new ones to our list.

Why Citations Matter

Here are the ways accurate citations can help your students achieve academic success, and how you can answer the dreaded question, “why should I cite my sources?”

They Give Credit to the Right People

Citing their sources makes sure that the reader can differentiate the student’s original thoughts from those of other researchers. Not only does this make sure that the sources they use receive proper credit for their work, it ensures that the student receives deserved recognition for their unique contributions to the topic. Whether the student is citing in MLA format , APA format , or any other style, citations serve as a natural way to place a student’s work in the broader context of the subject area, and serve as an easy way to gauge their commitment to the project.

They Provide Hard Evidence of Ideas

Having many citations from a wide variety of sources related to their idea means that the student is working on a well-researched and respected subject. Citing sources that back up their claim creates room for fact-checking and further research . And, if they can cite a few sources that have the converse opinion or idea, and then demonstrate to the reader why they believe that that viewpoint is wrong by again citing credible sources, the student is well on their way to winning over the reader and cementing their point of view.

They Promote Originality and Prevent Plagiarism

The point of research projects is not to regurgitate information that can already be found elsewhere. We have Google for that! What the student’s project should aim to do is promote an original idea or a spin on an existing idea, and use reliable sources to promote that idea. Copying or directly referencing a source without proper citation can lead to not only a poor grade, but accusations of academic dishonesty. By citing their sources regularly and accurately, students can easily avoid the trap of plagiarism , and promote further research on their topic.

They Create Better Researchers

By researching sources to back up and promote their ideas, students are becoming better researchers without even knowing it! Each time a new source is read or researched, the student is becoming more engaged with the project and is developing a deeper understanding of the subject area. Proper citations demonstrate a breadth of the student’s reading and dedication to the project itself. By creating citations, students are compelled to make connections between their sources and discern research patterns. Each time they complete this process, they are helping themselves become better researchers and writers overall.

When is the Right Time to Start Making Citations?

Make in-text/parenthetical citations as you need them.

As you are writing your paper, be sure to include references within the text that correspond with references in a works cited or bibliography. These are usually called in-text citations or parenthetical citations in MLA and APA formats. The most effective time to complete these is directly after you have made your reference to another source. For instance, after writing the line from Charles Dickens’ A Tale of Two Cities : “It was the best of times, it was the worst of times…,” you would include a citation like this (depending on your chosen citation style):

(Dickens 11).

This signals to the reader that you have referenced an outside source. What’s great about this system is that the in-text citations serve as a natural list for all of the citations you have made in your paper, which will make completing the works cited page a whole lot easier. After you are done writing, all that will be left for you to do is scan your paper for these references, and then build a works cited page that includes a citation for each one.

Need help creating an MLA works cited page ? Try the MLA format generator on EasyBib.com! We also have a guide on how to format an APA reference page .

2. Understand the General Formatting Rules of Your Citation Style Before You Start Writing

While reading up on paper formatting may not sound exciting, being aware of how your paper should look early on in the paper writing process is super important. Citation styles can dictate more than just the appearance of the citations themselves, but rather can impact the layout of your paper as a whole, with specific guidelines concerning margin width, title treatment, and even font size and spacing. Knowing how to organize your paper before you start writing will ensure that you do not receive a low grade for something as trivial as forgetting a hanging indent.

Don’t know where to start? Here’s a formatting guide on APA format .

3. Double-check All of Your Outside Sources for Relevance and Trustworthiness First

Collecting outside sources that support your research and specific topic is a critical step in writing an effective paper. But before you run to the library and grab the first 20 books you can lay your hands on, keep in mind that selecting a source to include in your paper should not be taken lightly. Before you proceed with using it to backup your ideas, run a quick Internet search for it and see if other scholars in your field have written about it as well. Check to see if there are book reviews about it or peer accolades. If you spot something that seems off to you, you may want to consider leaving it out of your work. Doing this before your start making citations can save you a ton of time in the long run.

Finished with your paper? It may be time to run it through a grammar and plagiarism checker , like the one offered by EasyBib Plus. If you’re just looking to brush up on the basics, our grammar guides  are ready anytime you are.

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How To Cite Sources: In-depth Guide

Did you know that, on average, college students spend over 12 hours a week researching and writing essays? It's a considerable investment of time and energy, and the quality of your work can greatly impact your academic success. One of the critical aspects of crafting top-notch essays is the art of citing sources correctly. Whether you're in the world of psychology (APA), humanities (MLA), or history (Chicago), understanding and navigating the citation styles relevant to your field is a must.

In this comprehensive article, our college essay writing service will delve deep into the world of academic writing and the crucial role that proper source citation plays in your success. Explore the intricacies of citing sources in APA, MLA, and Chicago styles as we provide detailed guidance, real-world citing sources examples, and practical insights. Discover the nuances of citing multiple sources in one sentence, using citation generators, and citing primary sources. Additionally, we'll conduct a comparative analysis of these citation styles to help you choose the right one for your research papers. By the end of this journey, you'll be well-versed in the art of source citation and ready to elevate your academic writing to the next level.

When to Source Sources in Academic Writing?

In the realm of academic writing, citing sources accurately is far more than a mere formality; it's an ethical responsibility and a testament to the integrity of your work. Proper source citation serves as the foundation of scholarly discourse, ensuring transparency, credibility, and respect for intellectual property. By crediting the authors and researchers who've paved the way, you acknowledge the collective knowledge of your field.

Interestingly, a study by the International Journal of Educational Integrity found that improper citation practices are a leading cause of plagiarism, a serious offense in academia. In fact, plagiarism-detection software like Turnitin is now widely used to uphold academic integrity. This is where the convenience of citing sources generators becomes apparent, helping students and researchers ensure proper attribution while streamlining the citation process, whether they're citing sources in Chicago style or other formats.

Moreover, accurate citations, including a parenthetical citation, allow readers to trace your sources, verify your claims, and engage in meaningful discussions. They act as a bridge between your work and the wealth of research that precedes it. In essence, mastering the art of source citation is not just about compliance with formatting rules; it's about participating in a respectful and dynamic conversation within your academic community while giving due credit to the sources, particularly when citing primary sources, that have contributed to the intellectual growth of your field.

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APA Citation Style Basics

American Psychological Association (APA) style is a widely used and meticulously structured citation format primarily designed for disciplines in the social sciences. Understanding the fundamentals of APA format citing sources is vital for any student or researcher in psychology, sociology, education, and related fields. Here are some key insights into the world of APA citations from our ‘ do my paper ’ experts:

• In-text Citations with Precision : In APA style, in-text citations are concise and informative. For instance, consider this sentence: 'The impact of climate change on coastal ecosystems is a growing concern (Johnson, 2018).' In this case, 'Johnson' is the author's last name, and '2018' is the publication year. This format allows readers to quickly identify and locate the source in the reference list (Johnson, 2018).
• The Role of the Reference List : The reference list in APA style is like the treasure trove of your sources. It's a comprehensive list of all the materials you've cited in your work. For example, a reference entry for a journal article would look like this: Johnson, S. (2018). Climate Change Effects on Coastal Biodiversity . Environmental Studies, 36 (3), 255-269.
• DOI and Electronic Sources : In the digital age, many sources are found online, which is why APA has introduced the Digital Object Identifier (DOI) system. For instance, an APA citation for an online journal article with a DOI might look like this: Smith, P. (2021). Renewable Energy Solutions for Sustainable Future . Environmental Science Review, 45 (2), 101-120. https://doi.org/10.12345/esr.2021.2.101
• Citing Multiple Sources in One Sentence APA : APA rules for citing multiple sources in a single sentence are clear and practical. Consider this example for citing two sources in one sentence APA: 'Several studies (Smith, 2021; Johnson, 2018) have highlighted the urgency of addressing climate change's impact on coastal ecosystems.' Here, both sources are listed chronologically, creating a seamless flow of information in your text.
• The Power of Consistency : Consistency is a cornerstone of APA style. From the formatting of headings (e.g., Level 1, Level 2) to the use of italics for titles and the ordering of elements in a reference entry, adhering to the APA guidelines ensures your work looks polished and professional.
• Evolving Rules : As research methods and publishing practices evolve, so do citation styles. It's essential to stay updated with the latest APA publication manual as they adapt to the changing landscape of academic communication (American Psychological Association, 2020).

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MLA Citation Style Basics

The Modern Language Association (MLA) citation style is the hallmark of academic writing in the humanities, literature, and related fields. It's known for its simplicity, elegance, and focus on clarity. Here's a concise guide from our argumentative essay writing service to help you navigate the intricacies of MLA format citing sources:

• In-text Citations with Author-Page Format : Citing sources MLA style primarily uses a simple author-page format for in-text citations. For example, 'In his renowned work, Shakespeare explores themes of love and fate (Smith 45).' Here, 'Smith' is the author's last name, and '45' is the page number. This format allows readers to locate the corresponding entry in the Works Cited page.
• The Works Cited Page : The Works Cited page is the heart of MLA citation. It's a detailed list of all the sources you've referenced in your paper. Each entry follows a specific format, including the author's name, source title, publication information, and more.
• Citing Digital and Print Sources : MLA is adaptable to both digital and print sources. For a print book, an MLA citation would look like this: Smith, John. The Art of Writing . Random House, 2020. For an online article, you might format it as follows: Johnson, Sarah. 'The Digital Literary Landscape.' Digital Humanities Review , vol. 28, no. 3, 2021, www.example.com/dhr/28-3/johnson.
• Citing Multiple Works by the Same Author : When citing multiple works by the same author, use a shortened version of the title to differentiate them. For instance, (Smith, Art of Writing 34) and (Smith, 'Literary Exploration' 18).
• The Importance of Punctuation and Formatting : Proper punctuation and formatting are essential in MLA citation. Pay attention to italics for titles, quotation marks for short works, and the correct use of commas, periods, and colons.
• Evolving Guidelines : MLA citing sources guidelines are known for evolving with technology and research methods. Staying up-to-date with the latest MLA handbook is crucial to ensure your citations align with current standards.

Chicago Citation Style Basics

The Chicago citation style, often used in history, arts, and social sciences, is a versatile and comprehensive system known for its flexibility and depth. Here's a guide to help you embrace the intricacies of Chicago citation:

• Two Distinct Documentation Systems : Chicago offers two documentation systems: the Notes and Bibliography system (commonly used in history and the humanities) and the Author-Date system (preferred in the social sciences). Understanding which system your discipline employs is crucial.
• Footnotes and Endnotes : In the Notes and Bibliography system, footnotes or endnotes are used to cite sources within the text. For example, 'The Industrial Revolution transformed society in profound ways. [1]' The corresponding note at the bottom of the page or end of the chapter provides full citation details.
• Bibliography or Reference List : In Chicago, both systems require a comprehensive bibliography at the end of your work, which lists all the sources you've cited. Each entry should include elements like the author's name, title, publisher, and publication date.
• Citing primary sources Chicago style : Chicago is particularly celebrated for its approach to citing primary sources, such as archival documents, letters, and manuscripts. It demands specific details about the source's origin, location, and access date, ensuring a comprehensive record.
• Citing Multiple Sources in One Footnote Chicago : When citing multiple sources in one footnote, list them in chronological order, separated by semicolons. For example, 'The 19th century saw significant advancements in technology and communication.[1];[2].'
• The Emphasis on Publication Details : Chicago places a strong emphasis on providing extensive publication information for each source cited. This includes details like the place of publication and specific page numbers in the case of print sources.
• Evolving Standards : Just like other citation styles, Chicago's guidelines evolve over time to accommodate changes in research practices. Staying informed about the latest Chicago Manual of Style editions is essential for accurate citations.

APA vs. MLA vs. Chicago: Key Similarities and Differences

Citation styles play a pivotal role in academic writing, helping maintain consistency, credibility, and clarity in scholarly work. Among the most widely used styles are APA (American Psychological Association), MLA (Modern Language Association), and Chicago. Let's explore the key similarities and differences between these three major citation styles.

Similarities:

• In-text Citations : All three styles use in-text citations to acknowledge the sources of information. In-text citations allow readers to identify the corresponding entry in the reference list or bibliography.
• Reference Lists or Bibliographies : APA, MLA, and Chicago all require a list of references, works cited, or a bibliography at the end of the document. These lists provide complete details about the sources cited in the text.
• Author and Publication Year : Both APA and MLA styles include the author's last name and the publication year within in-text citations. This allows readers to easily locate the source in the reference list.
• Digital Object Identifiers (DOIs) : APA and MLA provide guidelines for citing sources with DOIs, ensuring the accuracy and stability of online references.

Differences:

Disciplines and Focus:

• APA is primarily used in the social sciences, including psychology, sociology, and education, with a focus on empirical research and concise, structured writing.
• MLA is widely employed in humanities disciplines, such as literature and language studies, emphasizing the analysis of literary and cultural texts.
• Citing sources Chicago style is versatile, used in history, arts, and social sciences, offering both Notes and Bibliography and Author-Date systems to accommodate different research needs.

In-text Citation Styles:

• APA uses an author-date format, e.g., (Smith, 2020), for in-text citations.
• MLA uses an author-page format, e.g., (Smith 45), for in-text citations.
• Chicago uses footnotes or endnotes, which provide full citations in superscript numbers within the text and often a bibliographic entry at the bottom of the page or the end of a chapter.

Reference List/Bibliography Format:

• APA organizes the reference list alphabetically by the author's last name, followed by the publication date.
• MLA arranges the works cited list alphabetically by the author's last name and, if there is no author, by the title.
• Chicago's Notes and Bibliography system uses footnotes or endnotes for citations and a bibliography, while the Author-Date system includes an alphabetically-arranged reference list.

Handling Multiple Sources in One Citation:

• APA typically lists multiple sources in one in-text citation using semicolons, e.g., (Smith, 2020; Johnson, 2019).
• MLA uses commas to separate multiple sources within one in-text citation, e.g., (Smith 45, Johnson 22).
• Chicago usually utilizes footnotes or endnotes to cite multiple sources, each source marked with a superscript number in the text.

Citing Page Numbers:

• In APA and MLA, page numbers are often included in in-text citations for direct quotations, e.g., (Smith, 2020, p. 25) or (Smith 25).
• Chicago uses footnotes or endnotes to include page numbers for direct quotations within the text itself.

Final Thoughts

In conclusion, mastering the nuances of APA, MLA, and Chicago citation styles, including the specific requirements for citing primary sources, is an invaluable skill for academic success. It will also be a helpful guide as you explore how to write a college admission essay . These styles empower you to engage in scholarly conversation while maintaining the integrity of your research. Choose the one that best aligns with your field and project, and remember that accurate citation not only upholds academic standards but also showcases your commitment to excellence in your work.

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In-Text Citations: The Basics

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Note:  This page reflects APA 6, which is now out of date. It will remain online until 2021, but will not be updated. The equivalent APA 7 page can be found here .

Reference citations in text are covered on pages 169-179 of the Publication Manual. What follows are some general guidelines for referring to the works of others in your essay.

Note:  On pages 65-66, the Publication Manual suggests that authors of research papers should use the past tense or present perfect tense for signal phrases that occur in the literature review and procedure descriptions (for example, Jones (1998) found or Jones (1998) has found ...). Contexts other than traditionally-structured research writing may permit the simple present tense (for example, Jones (1998)  finds ).

APA citation basics

When using APA format, follow the author-date method of in-text citation. This means that the author's last name and the year of publication for the source should appear in the text, for example, (Jones, 1998), and a complete reference should appear in the reference list at the end of the paper.

If you are referring to an idea from another work but NOT directly quoting the material, or making reference to an entire book, article or other work, you only have to make reference to the author and year of publication and not the page number in your in-text reference. All sources that are cited in the text must appear in the reference list at the end of the paper.

In-text citation capitalization, quotes, and italics/underlining

• Always capitalize proper nouns, including author names and initials: D. Jones.

( Note: in your References list, only the first word of a title will be capitalized: Writing new media .)

• When capitalizing titles, capitalize both words in a hyphenated compound word: Natural-Born Cyborgs .
• Capitalize the first word after a dash or colon: "Defining Film Rhetoric: The Case of Hitchcock's Vertigo ."
• Italicize the titles of longer works such as books, edited collections, movies, television series, documentaries, or albums: The Closing of the American Mind ; The Wizard of Oz ; Friends .
• Put quotation marks around the titles of shorter works such as journal articles, articles from edited collections, television series episodes, and song titles: "Multimedia Narration: Constructing Possible Worlds;" "The One Where Chandler Can't Cry."

Short quotations

If you are directly quoting from a work, you will need to include the author, year of publication, and page number for the reference (preceded by "p."). Introduce the quotation with a signal phrase that includes the author's last name followed by the date of publication in parentheses.

According to Jones (1998), "Students often had difficulty using APA style, especially when it was their first time" (p. 199).

Jones (1998) found "students often had difficulty using APA style" (p. 199); what implications does this have for teachers?

If the author is not named in a signal phrase, place the author's last name, the year of publication, and the page number in parentheses after the quotation.

She stated, "Students often had difficulty using APA style" (Jones, 1998, p. 199), but she did not offer an explanation as to why.

Long quotations

Place direct quotations that are 40 words or longer in a free-standing block of typewritten lines and omit quotation marks. Start the quotation on a new line, indented 1/2 inch from the left margin, i.e., in the same place you would begin a new paragraph. Type the entire quotation on the new margin, and indent the first line of any subsequent paragraph within the quotation 1/2 inch from the new margin. Maintain double-spacing throughout. The parenthetical citation should come after the closing punctuation mark.

Students often had difficulty using APA style, especially when it was their first time citing sources. This difficulty could be attributed to the fact that many students failed to purchase a style manual or to ask their teacher for help. (p. 199)

Summary or paraphrase

If you are paraphrasing an idea from another work, you only have to make reference to the author and year of publication in your in-text reference, but APA guidelines encourage you to also provide the page number (although it is not required).

According to Jones (1998), APA style is a difficult citation format for first-time learners.

APA style is a difficult citation format for first-time learners (Jones, 1998, p. 199).