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A comprehensive guide from the University of Southern California Libraries.
One Perfect Source?
It's easy to believe that your searching will turn up articles that directly address your topic in detail. But acutally you'll need to look at many articles and piece together information from each one. Gather more than you'll need. Review the articles, then choose the ones that help you understand, describe, and dig into your topic.
Another way is by searching the catalog-of-catalogs called WorldCat. When you search WorldCat, the results will be in the order of how many libraries in the system own a copy. If you're interested in getting a book sent here for you, click on the title to find out more about it, and then click on the link for ILL or interlibrary loan (there will be a red icon). You will be sent to the login screen for our ILL system.