Remember, reference materials are exactly that, for reference. They do not go very in-depth into a topic, so other non-reference resources should be used to support info from reference materials.
Some of these are reference books and cannot leave the library. Also, note that while the encyclopedias include basic info on a lot of gods, they don't go into much detail.
These books are from other academic institutions. Make sure to request these books in advance. They'll take a while to get to Edison.