Cita APA (7a ed.)

Cull, J. G., & Hardy, R. E. (1974). Behavior modification in rehabilitation settings: Applied principles. American lecture series.

Cita Chicago Style (17a ed.)

Cull, John G., y Richard E. Hardy. "Behavior Modification in Rehabilitation Settings: Applied Principles." American Lecture Series 1974.

Cita MLA (9a ed.)

Cull, John G., y Richard E. Hardy. "Behavior Modification in Rehabilitation Settings: Applied Principles." American Lecture Series, 1974.