This format is typically used if you would like to make reference to lecture notes from one of your classes.
1. Lecturer First Name Surname, "Lecture Title" (lecture, Location of Lecture, Month Day, Year of Lecture).
2. Lecturer Surname, "Lecture Title."
1. G. C. Sullivan, "The Art of Watercolours" (lecture, Red Deer College, Red Deer, AB, November 13, 2003).
2. Sullivan, "The Art of Watercolours."