APA In-Text Citation Examples: Complete Guide for Different Source Types

What Are In-Text Citations?

In-text citations are brief references placed inside your text that acknowledge the source of a quote, idea, or data. They do two things simultaneously: they give credit to the original author and they give your reader enough information to find the full citation in your reference list.

Think of them as a bridge between your text and your bibliography. Without them, you can’t use outside sources. Without a corresponding reference list entry, they’re useless.

Here’s the fundamental rule: every in-text citation must match an entry in your reference list, and every reference list entry must be cited in your text. ^[1]

• In-text citations are short references inside your text that point readers to your full reference list. They follow the author-date format: (Smith, 2023).
• Parenthetical citations go inside parentheses at the end of the sentence. Narrative citations weave the author’s name into the sentence itself.
• Every source type has a different format — journal articles, books, websites, AI tools, social media, podcasts, government reports, personal communications — and each one follows specific rules for author, year, and page numbers.
• The most common mistakes involve et al. formatting, the “Anonymous” rule, block quote punctuation, and whether page numbers are required for paraphrases.
• AI-generated content (ChatGPT, Gemini, etc.) has official APA citation rules as of September 2025 — a new area most student guides haven’t covered yet.

The Author-Date Format

APA uses the author-date system. This means your citation shows two pieces of information:

1. Author’s last name (or organization name)
2. Year of publication

For direct quotes, you add a page number (or paragraph number for online sources). For paraphrases, page numbers are optional.

That gives you the basic building block: (Smith, 2023) or (Smith, 2023, p. 42).

Parenthetical vs. Narrative Citations

There are two ways to present an in-text citation, and choosing the right one can improve your writing flow:

Both are correct. The choice depends on your sentence structure and reading rhythm. Use parenthetical when the citation is secondary to your main point. Use narrative when the author’s identity matters to your argument.

In-Text Citation Examples by Source Type

Below is a complete breakdown of how to cite every major source type in APA 7th edition. Each example includes parenthetical and narrative formats.

Journal Articles

Journal articles are the most commonly cited source type in academic writing.

One Author:

• Parenthetical: (Smith, 2023)
• Narrative: Smith (2023)

Two Authors:

• Parenthetical: (Smith & Jones, 2023)
• Narrative: Smith and Jones (2023)

Three or More Authors: Use et al. (meaning “and others”) starting with the first citation.

• Parenthetical: (Smith et al., 2023)
• Narrative: Smith et al. (2023)
• Important: et al. does not have a period after “et”. It is et al., not et. al..

Example in Context:

A recent study found that spaced repetition significantly improves long-term retention (Chen & Patel, 2024). However, Chen et al. (2024) also noted that the effect diminishes when students skip review sessions.

Books

Single Author:

• Parenthetical: (Gopnik, 2022)
• Narrative: Gopnik (2022)

Edited Book (citing a specific chapter by a different author):

• Parenthetical: (Miller, 2021, as cited in Thompson, 2023)
• Narrative: Miller (2021, as cited in Thompson, 2023)

Example in Context:

The study demonstrated a clear correlation between practice frequency and exam performance (Reynolds, 2021). This finding echoes earlier work by Thompson (2023).

Websites with an Author

With Author Name:

• Parenthetical: (Webster, 2025)
• Narrative: Webster (2025)

Example in Context:

Online learning platforms have expanded access to education for millions of students (Webster, 2025). According to Webster (2025), enrollment in digital courses grew by 47% in the past three years.

Websites Without an Author

When a webpage has no individual author, use the organization or the title of the page as the author element.

Organization as Author:

• Parenthetical: (National Institute of Mental Health, 2024)
• Narrative: The National Institute of Mental Health (2024)

Abbreviation Rule: On the first citation, write out the full organization name, then put the abbreviation in parentheses. On subsequent citations, use only the abbreviation.

• First: (National Institute of Mental Health [NIMH], 2024)
• Subsequent: (NIMH, 2024)

No Organization — Use the Title: When there is no author and no organization, use the page title in place of the author, italicized. Abbreviate longer titles on second citation.

• Parenthetical: ("Student Mental Health Trends," 2025)
• Narrative: The "Student Mental Health Trends" (2025) report found...

Organization or Group Authors

Many sources come from organizations that produce research, reports, and data. The treatment depends on whether the abbreviation is widely known.

Widely Known Abbreviation (APA allows it from the first citation):

• Parenthetical: (WHO, 2024)
• Narrative: WHO (2024)

Not Widely Known Abbreviation:

• First citation: (World Health Organization [WHO], 2024)
• Subsequent: (WHO, 2024)

Social Media

Social media posts are trickier because they are fleeting, informal, and often lack clear authorship.

Twitter/X Post:

• Parenthetical: (@handle, Day Month Year)
• Narrative: @handle (Day Month Year)
• Example: (@UofAScience, 15 March 2025)

Instagram Post:

• Parenthetical: (Instagram, 2025)
• Narrative: Instagram (2025)
• Note: If the post has an @username, use it in place of “Instagram.”

Important: Social media posts are not recoverable sources. You cannot link to them in your reference list. Include a note saying the post is archived or available upon request if relevant.

Podcasts

Entire Podcast Episode:

• Parenthetical: (Podcast Name, Year)
• Narrative: Podcast Name (Year)

Specific Segment or Quote: Include a timestamp since podcasts have no page numbers.

• Parenthetical: (Podcast Name, 2024, 15:30)
• Narrative: According to the "Science Weekly" podcast (2024, 15:30)...

Films and Videos

Film or Movie:

• Parenthetical: (Director Lastname, Year)
• Narrative: Director Lastname (Year)

YouTube Video:

• Parenthetical: (Channel Name, Year) or (Lastname, Year) if an individual is the creator
• Narrative: The channel (Year) explained...

Timestamp for Quotes: Just like podcasts, use timestamps instead of page numbers.

• Parenthetical: (National Geographic, 2024, 3:45)

Government Reports

Federal Government Report:

• Parenthetical: (U.S. Department of Education, 2024)
• Narrative: The U.S. Department of Education (2024) reported...

State Government Report: Include the state and department.

• Parenthetical: (State of California Department of Education, 2023)

Personal Communications

Personal communications include interviews, emails, direct messages, private conversations, and unpublished data.

Format:

• Parenthetical: (J. Smith, personal communication, Month Day, Year)
• Narrative: J. Smith (personal communication, Month Day, Year)

Important: Personal communications are not included in your reference list because readers cannot retrieve them. They only appear as in-text citations.

Interviews and Focus Groups

Published Interview:

• Parenthetical: (Interviewee Lastname, Year)
• Narrative: Interviewee Lastname (Year)

Unpublished Interview (your own research):

• Parenthetical: (J. Smith, personal communication, 12 March 2025)

AI-Generated Content (ChatGPT, Gemini, etc.)

This is new. The American Psychological Association updated its guidelines in September 2025 to address citing AI chatbots and generative AI tools. Here’s how to do it:

When You Used AI as a Source (it generated text you quoted or paraphrased):

• Parenthetical: (OpenAI, 2025)
• Narrative: OpenAI (2025)

When You Used AI as a Tool (to help write, but not as a cited source):

• Add a note in your methods or acknowledgments section, not as an in-text citation.

Reference List Entry (for AI as source):

OpenAI. (2025). ChatGPT (Version XXXXX) [Generative AI]. https://chat.openai.com

Important: If you used AI to generate content for your paper, APA now requires you to disclose this transparently. See the APA Style blog for the full citation guidelines. ^[2]

Common Mistakes Students Make (and How to Avoid Them)

Mistake 1: et al. Formatting

Wrong: et. al. (period after “et”)
Right: et al. (period only after “al”)

Wrong: (Smith et al 2023) (missing comma)
Right: (Smith et al., 2023) (comma after “al.”)

Mistake 2: The “Anonymous” Rule

Wrong: Using “Anonymous” as the author unless the source literally says “Anonymous” in all caps.

Right: If a source has no named author, use the title of the work in place of the author. Never use “Anonymous” unless that is literally what the source says.

Wrong: (Anonymous, 2023)
Right: ("Student Mental Health Trends," 2025)

Mistake 3: Page Numbers for Paraphrases

Wrong: Adding a page number every time you paraphrase.

Right: Page numbers are required only for direct quotes. For paraphrases, a page number is encouraged if it helps the reader locate the specific idea, but never required.

Quote: "...sleep is critical for memory consolidation" (Jones & Lee, 2022, p. 15)
Paraphrase: Sleep helps people remember what they learned (Jones & Lee, 2022).

Mistake 4: Block Quote Punctuation

Wrong: Putting the citation before the period.

Right: The citation comes after the final punctuation mark for block quotes.

Jones and Lee (2022) found:
  The evidence strongly suggests that consistent sleep patterns 
  are more important than total hours for cognitive performance 
  across all age groups. (p. 45)

Mistake 5: Repeating Citations in the Same Paragraph

Wrong: Repeating the parenthetical citation every time you mention the same source within one paragraph.

Right: For narrative citations, once you introduce the author in the first sentence, you don’t need to repeat the year for subsequent mentions in the same paragraph if the source remains clear. For parenthetical citations, repeat the year each time.

What We Recommend: A Quick Decision Framework

When you sit down to write and need to decide how to format your citation, follow this simple checklist:

1. How many authors?
   • 1 author → just the last name
   • 2 authors → both last names, joined by “and” or “&”
   • 3+ authors → use et al. from the first citation
2. Is it a direct quote or paraphrase?
   • Direct quote → must include page number
   • Paraphrase → page number is optional (use if helpful)
3. What’s the source type?
   • Follow the specific rules above for each type
4. Parenthetical or narrative?
   • Both are correct; choose based on your sentence flow

The biggest single thing that saves students the most formatting errors is using a citation manager like Zotero, Mendeley, or EndNote. These tools handle the formatting automatically, and you can cross-check our site’s guide against the citation management comparison to find the best free option.

FAQ

When do I use “et al.” in APA citations?

Use et al. when a source has three or more authors. Start using it on the first citation in your paper, not just the second. The correct format is Smith et al., 2023 (note the period after “al” but not after “et”).

How do I cite a source with no author?

Use the page or article title in place of the author. Italicize it if it’s a standalone work (like a report or webpage), or put it in quotes if it’s part of a larger work. On subsequent citations, abbreviate the title.

Do I need page numbers when paraphrasing?

No. Page numbers are required only for direct quotes. You may include a page number for paraphrases if it helps readers find the specific idea, but it’s not mandatory.

How do I cite a podcast or YouTube video?

Use a timestamp instead of a page number. Format it like this: (Podcast Name, 2024, 15:30). The timestamp tells readers exactly where in the audio or video to find the quote.

References

Need help with citations, formatting, or writing your next paper? Explore our Citation Management Tools comparison or check the MLA citation guide for alternative styles. Or order a custom paper from our team of qualified writers — we handle the research, writing, and formatting so you can focus on studying.