The 'Request It" button should be available for every item in the catalog. If it's a book, it will look like this:
Searching Databases
Databases like Academic Search Complete will have a find it button, which leads to our catalog. Once there, you can click the "Request It" link.
Searching Worldcat
Worldcat is a database that reflects over 2 billion items in libraries across the world. It shows what books are out there, as well as defining which libraries own them.