Below are some linked searches that may be of interest:
If you only want to search for materials in the library catalog and not an additional database of millions of article citations make sure you select the option Books & Multimedia on the library home page or Books, Images, and More inside NUsearch:
Library home page
Important: If the libraries do not hold a source that you need (book, article, video) use Interlibrary Loan to request from another library. Use WorldCat to search for works at other libraries.
Important: The Hathi Trust is also a great source for finding books and other sources.