Dyfyniad APA

Chance, P., & Harris, T. G. (1990). The Best of Psychology today. McGraw-Hill.

Dyfyniad Arddull Chicago

Chance, Paul, and T. George Harris. The Best of Psychology Today. New York: McGraw-Hill, 1990.

Dyfyniad MLA

Chance, Paul, and T. George Harris. The Best of Psychology Today. McGraw-Hill, 1990.

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