Zimbardo, P. G. (1980). Essentials of psychology and life (10ª ed.). Scott, Foresman.
Lua i Stíl Chicago (17ú heag.)Zimbardo, Philip G. Essentials of Psychology and Life. 10ª ed. Scott, Foresman, 1980.
Lua MLA (9ú heag.)Zimbardo, Philip G. Essentials of Psychology and Life. 10ª ed. Scott, Foresman, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.