Zimbardo, P. G. (1969). The human choice: Individuation, reason, and order versus deindividuation, impulse, and chaos. In W. J. Arnold & D. Levine (Eds.), Nebraska Symposium on Motivation (Vol. 17). Lincoln, NE: University of Nebraska Press;
Zimbardo, P. G. (1971, October 25). The psychological power and pathology of imprisonment. A statement prepared for the U.S. House of Representatives Committee on the Judiciary, Subcommittee No. 3: Hearings on Prison Reform, San Francisco, CA.
