Dyfyniad APA

Festinger, L. (1957). A theory of cognitive dissonance. Stanford University.

Dyfyniad Arddull Chicago

Festinger, Leon. A Theory of Cognitive Dissonance. Stanford, CA: Stanford University, 1957.

Dyfyniad MLA

Festinger, Leon. A Theory of Cognitive Dissonance. Stanford University, 1957.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.