APA (7th ed.) Citation

Hilgard, E. R. Theories of learning (2d ed.). Appleton-Century-Crofts.

Chicago Style (17th ed.) Citation

Hilgard, Ernest R. Theories of Learning. 2d ed. New York: Appleton-Century-Crofts.

MLA (9th ed.) Citation

Hilgard, Ernest R. Theories of Learning. 2d ed. Appleton-Century-Crofts.