Lua APA (7ú heag.)

Lefton, L. A. (1994). Psychology (5th.ed.). Allyn and Bacon.

Lua i Stíl Chicago (17ú heag.)

Lefton, Lester A. Psychology. 5th.ed. Boston: Allyn and Bacon, 1994.

Lua MLA (9ú heag.)

Lefton, Lester A. Psychology. 5th.ed. Allyn and Bacon, 1994.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.