If WVU doesn't have the book or journal article you are looking for try E-ZBorrow or InterLibrary Loan. Both services are free!
Search WVU collections and the collections of libraries world-wide with WorldCat Discovery. WVU books will be listed prominently, but you will also be able to request items from other libraries using EZ-Borrow and ILLiad, all from within WorldCat. WorldCat Discovery lets you find everything you need with one simple search interface. It’s a way for you to locate books, articles, journals, videos and other items of interest in your library or other libraries.
These flash tutorials will provide some great information to get your search started:
Worldcat Discovery: Basic Searching [8 min. flash tutorial]
Worldcat Discovery: Advanced Searching [8 min. flash tutorial]