The best method is the university's bookstore. For Columbia for example, go to https://columbia.bncollege.com/shop/columbia/home https://columbia.bncollege.com/

The best method is the university's bookstore. For Columbia for example, go to https://columbia.bncollege.com/shop/columbia/home https://columbia.bncollege.com/shop/columbia/home Then, Textbooks > Find Textbooks, Select Department, Course etc. You'll see that there are weird code names for each course, and these can easily be found on the Courses page e.g. http://www.columbia.edu/cu/bulletin/uwb/ http://www.columbia.edu/cu/bulletin/uwb/ An example would be Department: COMS (Computer Science), Course: W3251, Section: 001 I'd imagine the case is similar for other colleges.