Hergenhahn, B. R. (2001). An introduction to the history of psychology (4th ed.). Wadsworth Thomson Learning.
Lua i Stíl Chicago (17ú heag.)Hergenhahn, B. R. An Introduction to the History of Psychology. 4th ed. Belmont, CA: Wadsworth Thomson Learning, 2001.
Lua MLA (9ú heag.)Hergenhahn, B. R. An Introduction to the History of Psychology. 4th ed. Wadsworth Thomson Learning, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.