Cita APA (7a ed.)

Williams, J. L. (1973). Operant learning: Procedures for changing behavior. Brooks/Cole Publ.

Cita Chicago Style (17a ed.)

Williams, Jon L. Operant Learning: Procedures for Changing Behavior. Monterey, Calif: Brooks/Cole Publ, 1973.

Cita MLA (9a ed.)

Williams, Jon L. Operant Learning: Procedures for Changing Behavior. Brooks/Cole Publ, 1973.