Books in our libraries are shelved by the LC classification system. In the main Roy O West library, books with call numbers starting with the letters A-D are located on the second floor of the library, while books with call numbers starting with the letters E-Z are located on the third floor of the library. In the Prevo branch library, all books except Reference books and Reserves are shelved in the basement of the library.
Common call numbers for this subject are:
To find books (and more!) use DePauw's Discovery search. It will also search materials owned by libraries all over the world.