History books are located within the following letter ranges:
D: World History and History of Europe, Asia, Africa, and Oceania
E: History of the Americas (America and U.S. in general)
F: History of the Americas (U.S. local history, Caribbean, Latin America)
This is true regardless of location so books in Special Collections (1st floor), Reference (3rd floor) and Main Stacks (4th-5th floors) with these starting letters on the spine will relate to history.
Use of WorldCat or HORNETCat will guide you to books held by the Levi Watkins Learning Center. WorldCat will also guide you to books held by other libraries.
Book reviews can help you decide whether a book is authoritative or not. They can also provide book summaries.