APA (7th ed.) Citation

Hilgard, E. R. (1958). Theories of learning (2.ed.). Methuen.

Chicago Style (17th ed.) Citation

Hilgard, Ernest R. Theories of Learning. 2.ed. London: Methuen, 1958.

MLA (9th ed.) Citation

Hilgard, Ernest R. Theories of Learning. 2.ed. Methuen, 1958.