Books are often the best starting points: A single book can sometimes give you a lot of information on a theory, its theorist, its history, & its development. Your best bet for books & ebooks is the ODU Library Catalog & OhioLINK Library Catalog. You can find books in print as well as online.
Find primary sources--books by your theorists that provide the theories--and secondary sources--books by later writers about those theories.
Start with our library catalog for immediate access to books & ebooks in our collection. Then try OhioLINK's Library Catalog--and make sure to allow enough time for delivery of any book(s) you request from another library to ODU: at least 5-7 business days.
Review our recommended search strategies for searching on theories.