Dyfyniad APA

(1994). Encyclopedia of psychology (2nd ed.). New York: John Wiley and Sons.

Dyfyniad Arddull Chicago

Encyclopedia of Psychology. 2nd ed. New York: John Wiley and Sons, 1994.

Dyfyniad MLA

Encyclopedia of Psychology. 2nd ed. New York: John Wiley and Sons, 1994.

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