Hergenhahn, B. (1986). An introduction to the history of psychology. Wadsworth.
Lua i Stíl Chicago (17ú heag.)Hergenhahn, B.R. An Introduction to the History of Psychology. California: Wadsworth, 1986.
Lua MLA (9ú heag.)Hergenhahn, B.R. An Introduction to the History of Psychology. Wadsworth, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.