To search for books, use the Library Catalogue. Helpful subject headings to begin with are:
Also remember to note the distinction between Primary Sources (sources that are firsthand accounts, original documents, or artifacts) and Secondary Sources (sources that summarize, interpret, or analyze primary sources). The word "sources" in the subject heading can help you find primary sources. Example: Greece -- History -- To 146 B.C. -- Sources.
Classical Languages and Literature