...Write down the book's Call Number. The call number is basically the book's address, and is what you will use to find the book on the shelf.
(eBooks do not have call numbers. You will view them online.)
Here are a few places you can find eBooks, just remember that you will have to login with your myNOVA username and password (the same ones you use to access Blackboard, student email, etc.). More information on downloading eBooks.
Did you know that you can find some of your textbooks at the library? Stop by the desk and see if your professor provided a copy for you to use.