To find out if the Library has a specific JOURNAL ARTICLE for which you have a cited reference see this Locating Articles guide.
To find out if the Library has a specific BOOK or REPORT for which you have a cited reference go to OneSearch Advanced Search.
In the 1st search box, type the title of the book and to the left of the box, select Title from the pull down menu.
In the 2nd search box, type the last name of the author and to the left of the box, select Author from the pull down menu.
If available, OneSearch will provide the floor location and the call number of the book in the Library; for e-books a link will be provided.
If the Library does not have the book request a copy from InterLibrary Loan. It's free and fast.