Gaya APA

Zimbardo, P, G. (1969). The Cognitive Control of Motivation: The Consequences of Choice and Dissonance . Illinois: Scott, Foresman and Company.

Gaya MLA

Zimbardo, Philip, G.. "The Cognitive Control of Motivation: The Consequences of Choice and Dissonance". Illinois: Scott, Foresman and Company, 1969. Art Original.