APA (7th ed.) Citation

Ferster, C. B., & Skinner, B. F. (1957). Schedules of reinforcement. ppleton-Century-Crofts.

Chicago Style (17th ed.) Citation

Ferster, C. B., and B. F. Skinner. Schedules of Reinforcement. New York: ppleton-Century-Crofts, 1957.

MLA (9th ed.) Citation

Ferster, C. B., and B. F. Skinner. Schedules of Reinforcement. ppleton-Century-Crofts, 1957.