It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
Credo Reference provides access to the cross-searchable full text of approximately 700 different reference sources (encyclopedias, dictionaries, biographical sources, chronologies, etc.).
Google Books is a great supplementary resource to discover books that pertain to your research. Since the Google Books digitization project began several years ago, Google has made electronic copies of 12 percent of the world's books that have ever been printed. With this incredible repository, you can access the full text of many books that are out of print or unavailable. You can also read sections of chapters online and immediately decide whether the book you've found will be useful.
Use the field below to search the Google Books library.