Dyfyniad APA

Hill, W. F. (1997). Learning: A survey of psychological interpretations (6th ed.). Longman.

Dyfyniad Arddull Chicago

Hill, Winfred F. Learning: A Survey of Psychological Interpretations. 6th ed. New York: Longman, 1997.

Dyfyniad MLA

Hill, Winfred F. Learning: A Survey of Psychological Interpretations. 6th ed. Longman, 1997.

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