Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Ferster, C.B., y B. F. Skinner. Schedules of Reinforcement. New York: Appleton-Century-Crofts, Inc, 1957.

Cita MLA (9a ed.)

Ferster, C.B., y B. F. Skinner. Schedules of Reinforcement. Appleton-Century-Crofts, Inc, 1957.