Search the library catalog to identify books, audiovisuals, or government documents on your topic.
These are common call number areas for history:
Call numbers A-K are shelved on the second floor; call numbers L-Z are shelved on the third floor.
Use WorldCat to search the catalogs of thousands of other libraries. If Nimitz Library doesn't have a title you need, use the Interlibrary Loan link above to request borrowing a copy.
Remember to check the footnotes or endnotes as well as the bibliography in any scholarly book you use. This often leads you to a variety of possible additional sources, including primary sources.