Cita APA (7a ed.)

Roberts, G. C. (1992). Motivation in sport and exercise. Human Kinetics.

Cita Chicago Style (17a ed.)

Roberts, Glyn C. Motivation in Sport and Exercise. Champaign, Illinois: Human Kinetics, 1992.

Cita MLA (9a ed.)

Roberts, Glyn C. Motivation in Sport and Exercise. Human Kinetics, 1992.