Cita APA (7a ed.)

Festinger, L. (1957). A theory of cognitive dissonance. Univ. Press.

Cita Chicago Style (17a ed.)

Festinger, Leon. A Theory of Cognitive Dissonance. Stanford, Calif: Univ. Press, 1957.

Cita MLA (9a ed.)

Festinger, Leon. A Theory of Cognitive Dissonance. Univ. Press, 1957.