Dyfyniad APA

Zimbardo, P. G. (1975). Psychology of life (9th.ed.). Scott,Foresman and co..

Dyfyniad Arddull Chicago

Zimbardo, Philip G. Psychology of Life. 9th.ed. Illinois: Scott,Foresman and co., 1975.

Dyfyniad MLA

Zimbardo, Philip G. Psychology of Life. 9th.ed. Scott,Foresman and co., 1975.

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