APA (7th ed.) Citation

Walker, S. (1975). Learning and reinforcement (1. publ.). Methuen.

Chicago Style (17th ed.) Citation

Walker, Stephen. Learning and Reinforcement. 1. publ. London: Methuen, 1975.

MLA (9th ed.) Citation

Walker, Stephen. Learning and Reinforcement. 1. publ. Methuen, 1975.