Lavay, B. W., French, R., & Henderson, H. L. (1997). Positive behavior management strategies for physical educators. Human Kinetics.
Cita Chicago (17th ed.)Lavay, Barry W., Ron French, i Hester L. Henderson. Positive Behavior Management Strategies for Physical Educators. Champaign, Ill: Human Kinetics, 1997.
Cita MLA (9th ed.)Lavay, Barry W., et al. Positive Behavior Management Strategies for Physical Educators. Human Kinetics, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.