This guide identifies some research sources and methods that are particularly useful when you are checking citations. It is not designed to be a comprehensive guide to legal research; nor does it attempt to cover all types of publications that may be cited in the articles you are cite-checking. Rather, the focus is on the types of sources that are most commonly cited in U.S. legal and law-related journals and some of the best electronic resources we have available at USC to find these items. The guide is divided into several parts, with each part focusing on one or more types of publications. For each publication you need to locate, always try to first determine what kind of item it is (book, article, case, statute, regulation, legislative history document, etc.). This will help you choose the correct search terms and tools to use.