rule of thumb, check the library reserve before buying. Chances are you won't need it for most of the time and can borrow it from the library. Saves you lots.
library reserve does have its down sides though. first you have to go all the way to the library anytime you want to study or look something up and someone else could be using the book when you need it
Comments
http://www.sfu.ca/criminology/ugrad/courseinfo/index.html
check your course outlines.
You can also check the Bookstore's "Find Your Textbooks" at:
http://tinyurl.com/99wv94b
(the original url is ridiculously long)