Straub, R. O. (1998). Study guide to accompany psychology (5th ed.). Worth.
Lua i Stíl Chicago (17ú heag.)Straub, Richard O. Study Guide to Accompany Psychology. 5th ed. New York: Worth, 1998.
Lua MLA (9ú heag.)Straub, Richard O. Study Guide to Accompany Psychology. 5th ed. Worth, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.