How to Quote Sources in an Essay (APA, MLA, Chicago) 2026
Learn how to quote sources correctly in APA, MLA, and Chicago formats. Includes rules for short quotes, block quotes, and in-text citations with examples.
How to Quote Sources in an Essay (APA, MLA, Chicago) 2026
Nothing tanks your credibility faster than a misformatted quote. Whether you're adding expert testimony, citing research findings, or borrowing a memorable phrase, knowing how to quote sources correctly is essential for academic writing.
The tricky part? APA, MLA, and Chicago each have different rules for quoting. What works in one style will get marked wrong in another.
In this guide, you'll learn exactly how to quote sources in all three major citation styles. We'll cover short quotes, long block quotes, when to use brackets and ellipses, and how to cite your quotes properly. By the end, you'll handle quotations like a pro—no more guessing or losing points on technicalities.
Table of Contents
- When Should You Use a Quote?
- Short Quotes vs. Block Quotes
- How to Quote in APA Format
- How to Quote in MLA Format
- How to Quote in Chicago Format
- How to Modify Quotes (Brackets and Ellipses)
- Common Quoting Mistakes to Avoid
- FAQ
When Should You Use a Quote?
Before diving into formatting, let's address when quoting actually makes sense. Many students over-quote, filling their essays with long passages from sources instead of developing their own ideas.
Use a direct quote when:
- The exact wording is crucial (definitions, laws, famous statements)
- The author said it better than you could paraphrase
- You're analyzing the language itself (literary analysis, rhetorical analysis)
- You need to show direct evidence for a controversial claim
Don't use a quote when:
- You can paraphrase the idea more concisely
- The quote doesn't add anything your own words couldn't
- You're using quotes just to fill space
A good rule of thumb: quotes should make up no more than 10-15% of your essay. The rest should be your analysis, synthesis, and original thinking.
Short Quotes vs. Block Quotes
All three major citation styles distinguish between short quotes (integrated into your paragraph) and long block quotes (set apart from the text). The threshold for what counts as "long" varies by style:
| Style | Short Quote Limit | Block Quote Threshold | |-------|-------------------|-----------------------| | APA | Under 40 words | 40+ words | | MLA | Under 4 lines | 4+ lines of prose | | Chicago | Under 100 words | 100+ words (or 2+ paragraphs) |
Short quotes use quotation marks and flow within your sentence. Block quotes are indented, have no quotation marks, and stand as their own paragraph.
Let's see how each style handles both types.
How to Quote in APA Format
APA (American Psychological Association) is the standard for psychology, education, and social sciences. Here's how to quote correctly in APA 7th edition.
Short Quotes in APA (Under 40 Words)
For quotes under 40 words, integrate them into your paragraph using double quotation marks. Include the author, year, and page number.
Narrative citation (author in sentence):
According to Smith (2024), "effective time management is the strongest predictor of academic success in first-year students" (p. 45).
Parenthetical citation (author in parentheses):
Research confirms that "effective time management is the strongest predictor of academic success in first-year students" (Smith, 2024, p. 45).
Key rules:
- Use double quotation marks
- Include page number with "p." (or "pp." for multiple pages)
- Period goes after the parenthetical citation, not inside the quote
Block Quotes in APA (40+ Words)
For quotes of 40 words or more, create a block quote:
- Start on a new line
- Indent the entire block 0.5 inches from the left margin
- Double-space the quote
- Don't use quotation marks
- Place the period before the citation
Example:
Smith (2024) found significant differences in student outcomes:
Students who planned their study sessions in advance scored an average of 15% higher on final examinations compared to those who studied spontaneously. This effect was consistent across disciplines, suggesting that the cognitive benefits of scheduled learning transcend subject matter boundaries. (p. 47)
Notice: no quotation marks, indented, and the period comes before the citation.
How to Quote in MLA Format
MLA (Modern Language Association) is used in English, literature, and humanities. MLA 9th edition has slightly different rules than APA.
Short Quotes in MLA (Under 4 Lines)
Integrate short quotes into your paragraph with double quotation marks. Include the author's last name and page number—no comma between them, no "p." needed.
Example with author in sentence:
Morrison writes, "Freeing yourself was one thing; claiming ownership of that freed self was another" (95).
Example with author in parentheses:
The novel emphasizes that "freeing yourself was one thing; claiming ownership of that freed self was another" (Morrison 95).
Key rules:
- No comma between author and page number
- No "p." before page number
- Period goes after the parenthetical citation
Block Quotes in MLA (4+ Lines)
For quotes taking up four or more lines:
- Start on a new line
- Indent the entire block 0.5 inches
- Double-space
- Don't use quotation marks
- Period goes before the citation
Example:
Morrison explores the complexity of freedom:
Freeing yourself was one thing; claiming ownership of that freed self was another. Definitions belonged to the definers—not the defined. The journey from slave to free person required not only physical escape but a fundamental reimagining of selfhood. (95)
Quoting Poetry in MLA
Poetry has special rules. For 1-3 lines, use quotation marks and indicate line breaks with a forward slash (/):
Frost opens with uncertainty: "Two roads diverged in a yellow wood, / And sorry I could not travel both" (1-2).
For 4+ lines of poetry, use a block quote and preserve the original line breaks.
How to Quote in Chicago Format
Chicago style comes in two variants: Notes-Bibliography (humanities) and Author-Date (sciences). We'll cover the more common Notes-Bibliography system.
Short Quotes in Chicago (Under 100 Words)
Integrate short quotes using double quotation marks. Citations go in footnotes or endnotes.
Example:
Historians argue that "the Industrial Revolution fundamentally altered not just economies but the very concept of time."¹
The footnote would contain full citation details.
Key rules:
- Footnote number goes after the punctuation (period, comma)
- Use double quotation marks
- Period stays inside the quotation marks (unlike APA/MLA)
Block Quotes in Chicago (100+ Words)
For longer quotes:
- Start on a new line
- Indent the entire block (usually 0.5 inches)
- Single-space the block quote (even if the paper is double-spaced)
- No quotation marks
- Footnote number goes at the end
Example:
Thompson describes the shift in temporal consciousness:
Before the factory clock, time was measured by tasks and seasons. The harvest took as long as the harvest took. With industrialization came the tyranny of synchronized minutes, the punch card, the precisely measured workday. Workers no longer owned their time—they sold it by the hour.²
How to Modify Quotes (Brackets and Ellipses)
Sometimes you need to modify a quote for clarity or brevity. All three styles allow this, but you must signal changes to your reader.
Using Brackets [ ]
Use brackets to:
1. Add clarifying information:
Original: "He never recovered from it." Modified: "He [President Lincoln] never recovered from it."
2. Change capitalization:
Original: "the impact was severe." Modified: "[T]he impact was severe."
3. Change verb tense or pronouns for grammatical fit:
Original: "I believe this is correct." Modified: Smith argues that "[she] believe[s] this is correct."
Using Ellipses ...
Use ellipses to indicate omitted words:
Middle of a sentence:
"The results were significant ... affecting nearly all participants."
End of a sentence (APA/MLA use four dots—three for ellipsis plus period):
"The study revealed unexpected patterns...."
Important: Never use ellipses to change the meaning of a quote. Omitting words that reverse or distort the author's point is academic dishonesty.
Using [sic]
If the original quote contains an error, you can indicate you've reproduced it faithfully:
The historical document states, "The governmant [sic] hereby decrees..."
Common Quoting Mistakes to Avoid
1. Dropped Quotes
Never drop a quote into your essay without introduction or context.
Wrong:
"Students learn better with visual aids." This supports my argument.
Right:
Research supports the effectiveness of multimedia: "Students learn better with visual aids" (Chen, 2024, p. 32). This finding aligns with...
2. Quote-Heavy Paragraphs
If your paragraph is more quote than your own words, you're not analyzing—you're copying.
3. Mismatched Punctuation
Each style has different rules for where the period goes. Double-check yours.
4. Missing Page Numbers
For direct quotes, you almost always need a page number. "No page number" is only acceptable for sources that don't have them (websites, some ebooks).
5. Over-Quoting
If you can say it in fewer words yourself, paraphrase instead. Quote for impact, not for padding.
FAQ
How do I quote a quote (a quote within a quote)?
Use single quotation marks for the inner quote:
- APA/MLA: Johnson argues, "When Smith said 'this changes everything,' he understated the case" (p. 12).
- Chicago follows the same pattern.
Do I need a page number for every quote?
For APA and MLA, yes—include page numbers for direct quotes when available. For online sources without page numbers, use paragraph numbers (para. 4) in APA or section headings in MLA.
Can I start a sentence with a quote?
Yes, but it's often better to integrate quotes into your own sentences. Starting with a quote can feel abrupt.
How do I quote something someone said in an interview?
For interviews you conducted, cite it as personal communication (APA) or describe the source in your text (MLA/Chicago). These typically don't go in your bibliography.
What if I need to quote a long passage but only parts are relevant?
Use ellipses to omit irrelevant sections, but be careful not to distort meaning. If you're omitting too much, consider whether a shorter quote or paraphrase would work better.
Master Quoting Without the Headaches
Quoting correctly is one of those skills that feels fussy until it becomes automatic. The key is knowing your style guide's specific rules and applying them consistently.
Remember: quotes should support your argument, not replace it. Use them strategically for maximum impact, format them correctly, and always cite your sources.
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