[Modified] From the Metropolitan Museum of Art, Creative Commons 0 1.0 Universal (CC0 1.0)
Reference sources provide broad overviews, definitions, and general information.
Reference sources take the form of encyclopedias, dictionaries, atlases, handbooks, etc., and are a great starting point in the research process when you are beginning to understand an issue or establish context.
Here are some ways to search Course Reserves using the Instructor's last name (in this case Costa) that should get the desired result. These are ranked in the order that will give the best results when performing an "exact phrase" search: