APA (7th ed.) Citation

Willis, J. D., & Campbell, L. F. (1992). Exercise psychology. Human Kinetics Publ.

Chicago Style (17th ed.) Citation

Willis, Joe D., and Linda Frye Campbell. Exercise Psychology. Champaign, IL u.a: Human Kinetics Publ, 1992.

MLA (9th ed.) Citation

Willis, Joe D., and Linda Frye Campbell. Exercise Psychology. Human Kinetics Publ, 1992.