Feldman, R. S. (1997). Essentials of understanding psychology (3rd ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Feldman, Robert S. Essentials of Understanding Psychology. 3rd ed. New York: McGraw-Hill, 1997.
Lua MLA (8ú heag.)Feldman, Robert S. Essentials of Understanding Psychology. 3rd ed. McGraw-Hill, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.