Specifically a lecture. My prof. wants us to write a paper on hispanic culture and I want to quote her from the notes I took in her class. Thanks in advance:)
I would do it something like
Professor, Jane. Lecture notes (unpublished), Smarch 39, 2003.
This at least gets the point across. The exact date may not be necessary, but would probably be helpful if you have it.
If your professor tends to be anal about such things, though, I would recommend that you go to your local library and find the Chicago Manual of Style. Everything you would ever want to know about the proper form for writing (including how to write citations to all sorts of things.)
From: A Manual for Writers of Term Papers, Theses, and Dissertations, Sixth Edition, by Kate Turabian.
The bibliographic reference should be:
Doe, John. “Lecture Title” (lecture in <Class Name> on <Date>). University Name. University Location.
That, at least, is what I would include based on Turabian’s model. You can base your citation style in the work from that.