Credo Reference This link opens in a new windowAccess encyclopedic titles in all disciplines taught at Dickinson, including various language dictionaries, the Marquis Who's Who series and numerous other biographical sources, economics and business encyclopedias, food and agriculture sources, publishing sources, atlases, and many encyclopedias covering the arts, history, literature, science, technology, religion, philosophy, politics, psychology, geography, country studies, and more. Coverage: varies. Full text.