Verbal citations are included in your speech as you are delivering it.
They should include:
Verbal citations help explain the authority and currency of the sources and refer your listener to your complete list of full citations. Who provided this information? Is this an authoritative source (The New York Times vs. Joe's Blog)? Is it recent information?
The MLA handbook is designed for published written work and does not give explicit guidelines for how to cite audiovisual materials used as a visual aid while speaking, so here are some suggested guidelines:
If your picture, chart, table, audio file, or video file
cite it within your speech and provide a full citation on your Works Cited or References page.
To cite within your speech, insert a line underneath the chart, table, audio or video file including at least
Including at least this much information will lead your audience to the correct entry on your works cited page.
Also consider including additional information if it will help your audience understand the context, such as: