Wade, C., & Tavris, C. (1993). Psychology (3rd ed.). HarperCollins.
Lua i Stíl Chicago (17ú heag.)Wade, Carole, agus Carol Tavris. Psychology. 3rd ed. New York: HarperCollins, 1993.
Lua MLA (9ú heag.)Wade, Carole, agus Carol Tavris. Psychology. 3rd ed. HarperCollins, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.