APA (7th ed.) Citation

LaChance, R. M. (1972). Principles of motivation which influence participation in physical activity. LaChance.

Chicago Style (17th ed.) Citation

LaChance, Robert M. Principles of Motivation Which Influence Participation in Physical Activity. [University Park, Pa.]: LaChance, 1972.

MLA (9th ed.) Citation

LaChance, Robert M. Principles of Motivation Which Influence Participation in Physical Activity. LaChance, 1972.