How to Cite a Lecture in APA and MLA

Lectures, guest talks, and class notes need careful attribution. Learn the exact format for APA 7th edition and MLA 9th edition, with worked examples for live, recorded, and posted slides.

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How It Works — The Citation Formula

Lectures are considered personal communications in some contexts, but if they are recorded, posted online, or part of an institutional course, they become citable sources. The key information is always the same:

  1. Speaker name — treat as author
  2. Date — when the lecture was delivered
  3. Title — in quotation marks (MLA) or sentence case (APA)
  4. Course/event context — where it belongs
  5. Institution and location — for credibility
  6. URL — only if posted online (required for recorded/posted, optional for in-person)
  7. Format descriptor — [Lecture], [PowerPoint slides], [Class lecture], etc.

Worked Examples

Example 1: Live lecture (in-person, no recording)

Scenario: You attended a guest lecture by Dr. Patricia Chen on "Climate Justice in the Global South" at the University of Toronto on September 15, 2023, in Room 204 of the Environmental Centre.

APA 7
Chen, P. (2023, September 15). Climate justice in the global south [Lecture]. University of Toronto, Toronto, ON.
MLA 9
Chen, Patricia. "Climate Justice in the Global South." Environmental Studies Seminar, 15 Sept. 2023, University of Toronto, Toronto, ON. Lecture.
Example 2: Recorded lecture posted online (e.g., YouTube, Zoom recording, LMS)

Scenario: Professor James Liu recorded a lecture for PSYC 201 titled "Cognitive Biases in Decision-Making" and posted it to the course learning management system on October 22, 2023. The video is at https://lms.university.edu/courses/psyc201/videos/wk5.

APA 7
Liu, J. (2023, October 22). Cognitive biases in decision-making [Lecture video]. University Name. https://lms.university.edu/courses/psyc201/videos/wk5
MLA 9
Liu, James. "Cognitive Biases in Decision-Making." Psychology 201, 22 Oct. 2023, University Name. Lecture video, https://lms.university.edu/courses/psyc201/videos/wk5.
Example 3: Posted PowerPoint slides (common search case)

Scenario: Dr. Rachel Torres posted the PowerPoint slides for her lecture on "Molecular Genetics" for BIO 301 on the course website on March 8, 2024. The file is available at https://biology.university.edu/courses/bio301/slides/molgen.

APA 7
Torres, R. (2024). Molecular genetics [PowerPoint slides]. Retrieved from https://biology.university.edu/courses/bio301/slides/molgen
MLA 9
Torres, Rachel. "Molecular Genetics." Biology 301, 8 Mar. 2024, University Name. PowerPoint presentation, https://biology.university.edu/courses/bio301/slides/molgen.
Key point: If you are citing your own professor's unpublished lecture notes given in class (without recording or online posting), check your citation style guide — APA may treat it as a personal communication and exclude it from the reference list, while MLA may cite it as a class lecture.

Citation Format Comparison

Here is how APA 7 and MLA 9 differ for lectures:

Element APA 7 MLA 9
Author/Speaker Last, F. (initial only) Last, First
Date (Year, Month Day) Day Month Year (no parentheses)
Title Sentence case, no quotes "Title in quotation marks"
Format [Lecture] or [PowerPoint slides] Lecture. or Lecture video. or PowerPoint presentation.
Institution Institution name, Location Institution Name (after date)
URL https://... (if applicable) https://... (if applicable, at end)

Frequently Asked Questions

How do I cite my professor's lecture notes if they are unpublished?

In APA 7, unpublished lecture notes from a class you attended are usually treated as personal communications and excluded from the reference list — cite them in the text only with the date and author's name (e.g., "According to Dr. Smith's lecture notes (personal communication, September 15, 2023)…"). In MLA 9, you can cite them as a class lecture with the course name and institution. If the notes are posted online, both styles now allow a full reference.

How do I cite a guest lecture in MLA?

Use the guest speaker's name as the author, the title of the lecture in quotation marks, the course or event name, the date, the institution, and the format descriptor "Guest lecture." or "Lecture." Example: Smith, John. "Immigration Policy in Crisis." Comparative Politics Seminar, 20 Oct. 2023, Harvard University, Cambridge, MA. Guest lecture.

Do I cite an in-person lecture differently from a recorded one?

Yes. An in-person lecture has no URL; APA uses the institution and location. A recorded lecture requires a URL (or video platform link). In APA, add [Lecture video] or the URL. In MLA, add the URL at the end. If the recording is only available to students in the course, note the institution name clearly so others can request access.

How do I cite posted PowerPoint slides from a lecture?

Treat PowerPoint slides as a published presentation. APA: Author, A. (Year). Title [PowerPoint slides]. Retrieved from URL. MLA: Author, First. "Title." Course/Event, Date, Institution. PowerPoint presentation, URL. This is one of the most common citation needs for students and both styles handle it directly now.

What if the lecture was delivered via Zoom and a recording link was shared?

Cite it as a recorded lecture. APA: Speaker, A. (Year, Month Day). Title [Lecture video]. Institution. URL. MLA: Speaker, First. "Title." Course Name, Date, Institution. Lecture video, URL. Include the Zoom link if it remains publicly accessible; if it expires or is password-protected, note that fact.

Should I include the speaker's middle initial?

APA 7 requires initials only (first initial + middle initial if available). MLA 9 uses the full first name if known. Check your source material — if the speaker's middle name is not published or announced, use only the first and last name.

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