Cita APA

Osborne, J. G. (1969). Free-time as a reinforcer in the management of classroom behavior.

Citación estilo Chicago

Osborne, J. Grayson. Free-time As a Reinforcer in the Management of Classroom Behavior. 1969.

Cita MLA

Osborne, J. Grayson. Free-time As a Reinforcer in the Management of Classroom Behavior. 1969.

Precaución: Estas citas no son 100% exactas.