Use the entry title, last-update date, Wikipedia as the source, and a permanent “oldid” URL so readers can see the same version you used.
Wikipedia is often where a research sprint starts. It’s fast to scan, packed with links, and usually clear enough to help you learn the basic terms. Still, many teachers and journals want you to cite stronger sources than an editable encyclopedia entry. So what do you do when you still need to mention a Wikipedia page in your writing?
This article shows you how to cite a Wikipedia entry in APA 7th edition style in a way that holds up when someone checks your work. You’ll learn which URL to use, how to format the reference list entry, how to write the in-text citation, and when a retrieval date is needed. You’ll also get a clean checklist you can follow every time.
When Citing Wikipedia Makes Sense In APA
In school settings, Wikipedia is often treated as a starting point, not a final source. Even so, there are real cases where citing it is reasonable.
- Background framing: You’re defining a term so the reader knows what you mean before you shift to peer-reviewed or primary sources.
- Public knowledge snapshots: You’re writing about what the public-facing entry said at a certain moment (common in media studies and policy timelines).
- Meta writing: Your topic is Wikipedia itself, its editing model, or how an entry changed over time.
- Class rules: Your instructor allows it for low-stakes context, then requires stronger sources for claims and numbers.
If the statement in your paper is factual, technical, or tied to health, safety, or money, try to cite the original source that Wikipedia cites. That keeps your work stable and reduces the risk that an edit changes the claim after you wrote it.
What APA Expects When A Source Can Change
APA style cares about traceability. If a source can change, your reader needs a path to the same version you used. Wikipedia entries change all the time, so the plain page URL can fail this test.
That’s why the safest move is to cite a permanent link to the exact revision you read. On Wikipedia, that revision URL includes an oldid number. When you use an oldid link, anyone can open your citation and see the same text you saw, even if the live page has new edits.
How To Get The Correct Wikipedia URL
Before you write a single comma, grab the right link. This is the part that trips people up.
Use “Permanent Link” Instead Of The Browser Bar
On desktop, open the Wikipedia page, then find the sidebar section labeled “Tools.” Click “Permanent link.” That takes you to a versioned page with an oldid in the URL.
Copy The Full Versioned URL
The permalink URL usually looks like this:
https://en.wikipedia.org/w/index.php?title=Article_Title&oldid=123456789
Keep the oldid part. That’s the version marker. If you share only the clean title URL (the one with /wiki/), you’ll send readers to the live page, not your version.
What If You Can’t Find A Permanent Link
On mobile, the menus can be tucked away. If you can’t see “Tools,” use the page’s “View history” option, pick the version you used, then copy the URL from that revision page. The goal stays the same: a link that includes an oldid number.
Citation From Wikipedia APA Style With Stable Links
Once you have the versioned URL, you can build an APA reference entry. APA treats a Wikipedia page as an entry in a reference work. That changes two things:
- The entry title goes in sentence case and is italicized in the reference list.
- The source line uses “In Wikipedia” as the reference work name, followed by the URL of the version you used.
APA’s official examples show the pattern for citing Wikipedia entries as reference work entries, including how to handle version-specific links. APA’s Wikipedia reference examples are the cleanest reference point when you’re unsure about punctuation or order.
Now pair that with a stable link. If you ever need a refresher on finding a permalink that locks in the entry version, Wikipedia’s Help:Permanent link spells out where to find it and what the oldid number means.
APA style also prefers the date the entry was last updated. Wikipedia shows this date in the page footer as “This page was last edited on …” Use that date in your reference entry.
Reference List Template
Use this template for most Wikipedia entries in APA 7:
Title of entry. (Year, Month Day). In Wikipedia. URL
In-Text Citation Template
In-text citations follow the author-date system. Wikipedia entries usually have no personal author, so the entry title becomes the author element.
- Parenthetical: (“Title of entry,” Year)
- Narrative: Title of entry (Year) …
Use the year from the “last edited” date. If your entry was last edited on May 14, 2024, the year is 2024.
Do You Need A Retrieval Date?
APA uses retrieval dates when content is designed to change and no stable archived version is available. With Wikipedia, you can usually skip a retrieval date by using an oldid link. If you cannot provide a permanent link, add “Retrieved Month Day, Year, from URL” at the end of the reference entry.
Common Wikipedia APA Formats At A Glance
The examples below show the same idea across different situations: cite the entry title, the last update date, Wikipedia as the source, and the versioned URL.
| Situation | What To Use | How It Appears In APA |
|---|---|---|
| Standard entry with permalink | Permanent link with oldid | Entry title. (Year, Month Day). In Wikipedia. URL |
| Entry updated today | Last edited date from footer | Use the date from the “last edited” line |
| Entry has no clear date | Permalink page date stamp | Use the revision date shown on the versioned page |
| You referenced a section | Permalink + section anchor | Same reference entry; add section name in your sentence |
| You used figures or a table | Cite the original source if possible | Prefer the primary source in your reference list |
| You quoted a line | Quote sparingly with page context | Use quotation marks and cite title + year |
| You cited multiple entries | Separate reference for each entry | Each entry gets its own title, date, and URL |
| You cited Wikipedia itself | Only if topic is Wikipedia as a site | Use a webpage reference for Wikipedia’s site page |
Step-By-Step: Build A Clean APA Citation From A Wikipedia Page
Use this workflow each time. It’s faster than guessing, and it keeps your references consistent.
Step 1: Confirm You’re Citing The Right Thing
Ask one simple question: are you citing Wikipedia for a definition or overview, or are you citing it for a claim that should come from a stronger source? If it’s a claim, scan the “References” section of the Wikipedia entry and click through to the original source. Cite that source instead when you can.
Step 2: Capture The Permanent Link
Click “Permanent link” under “Tools,” then copy the URL with oldid. Paste it into your notes right away so you don’t lose the exact version.
Step 3: Pull The “Last Edited” Date
Scroll to the bottom of the Wikipedia page or look at the revision page metadata. Write down the full date in this format: Year, Month Day.
Step 4: Write The Reference List Entry
Put the entry title in the author position. Use sentence case for the entry title, then the date in parentheses. Add “In Wikipedia.” End with the versioned URL.
Step 5: Add The In-Text Citation Where The Idea Appears
Place the citation right after the sentence that uses the Wikipedia info. If you mention the entry title in your sentence, use a narrative citation. If not, use the parenthetical form.
Step 6: Double-Check Punctuation And Italics
APA punctuation is picky. The date stays in parentheses. The entry title is italicized in the reference list. “Wikipedia” is not italicized in the source element.
Accuracy Checks That Keep You Out Of Trouble
A Wikipedia citation can look perfect and still be weak if the underlying info is shaky. Use these checks before you submit your work.
Check The Article Quality Signals
Look near the top for tags that warn about missing citations, biased writing, or outdated content. If you see warnings, treat the page as a lead, not a source.
Check The Talk Page For Disputes
The “Talk” tab shows where editors argue about wording and sources. If there’s an active dispute about the exact claim you plan to use, pick a stronger source.
Check The Page History For Recent Swings
If a page has many edits in a short span, the content may be unstable. Your permalink still preserves your version, yet a fast-changing history is a clue to lean on primary sources.
Table: Common Mistakes And Fast Fixes
Most citation errors come from two habits: using the live URL and skipping the revision date. This table helps you spot mistakes in seconds.
| Mistake | Why It Breaks | Fix |
|---|---|---|
| Using the /wiki/ title URL | Readers may see different text later | Swap in a permalink URL with oldid |
| Using n.d. with no check | Wikipedia entries usually have a last edited date | Use the footer date or revision date |
| Listing Wikipedia as the author | APA treats the entry title as the author element | Move the entry title to the author position |
| Skipping italics on the entry title | APA formats reference work entries with italicized titles | Italicize the entry title in the reference list |
| Using a retrieval date with a permalink | Retrieval dates are for changeable content without stable versions | Drop the retrieval date if you used oldid |
| Citing one Wikipedia entry for many topics | Each entry has its own title, date, and URL | Create a separate reference entry per page |
| Using Wikipedia for a technical claim | Claims should come from primary or peer-reviewed sources | Follow the references and cite the original source |
A Quick Checklist You Can Reuse
- Use Wikipedia for background, or cite the primary source for claims.
- Grab the “Permanent link” URL that includes
oldid. - Use the “last edited” date as the publication date.
- Format the reference entry as an entry in a reference work: Title. (Date). In Wikipedia. URL.
- Use the entry title in the author slot for in-text citations: (“Title,” Year).
- Keep one reference list entry per Wikipedia page you cite.
Word count (HTML file, word-by-word): 1871 words.
References & Sources
- American Psychological Association (APA).“Wikipedia Entry References.”Official APA 7 example formats for citing Wikipedia and other wiki entries, including when to add retrieval dates.
- Wikipedia Help.“Help:Permanent Link.”Explains how Wikipedia permalinks work and how to copy a version-specific URL with an oldid parameter.