So, the thing to remember is that citing is, basically, a 2-step process:
The following video includes examples of footnotes/endnotes and demonstrates how they're connected to your bibliography.
Sometimes your professor will ask you to create an annotated bibliography as a project or to prepare for a big research paper. This is similar to a works cited page but with additional information describing each source and explaining why you chose to cite it.
Watch this video (2 min.) for more details:
Do you have to cite sources in a speech? Short answer...yes. Here is a really short example of how that sounds: