Cita APA (7a ed.)

Caspersen, C. J., Powell, K. E., & Christenson, G. M. (1985). Physical activity, exercise, and physical fitness: Definitions and distinctions for health-related research. [s.n.].

Cita Chicago Style (17a ed.)

Caspersen, Carl J., Kenneth E. Powell, y Gregory M. Christenson. Physical Activity, Exercise, and Physical Fitness: Definitions and Distinctions for Health-related Research. [S.l.]: [s.n.], 1985.

Cita MLA (9a ed.)

Caspersen, Carl J., et al. Physical Activity, Exercise, and Physical Fitness: Definitions and Distinctions for Health-related Research. [s.n.], 1985.