Dyfyniad APA

Hilgard, E. R., & Bower, G. H. (1956). Theories of learning (2nd ed.). Appleton-Century-Crofts.

Dyfyniad Arddull Chicago

Hilgard, Ernest R., and Gordon H. Bower. Theories of Learning. 2nd ed. New York: Appleton-Century-Crofts, 1956.

Dyfyniad MLA

Hilgard, Ernest R., and Gordon H. Bower. Theories of Learning. 2nd ed. Appleton-Century-Crofts, 1956.

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