Cita APA (7th ed.)

Thomas, J. R., & Nelson, J. K. (2001). Research methods in physical activity (4th ed.). Humanics Kinetics.

Cita Chicago (17th ed.)

Thomas, Jerry R., i Jack K. Nelson. Research Methods in Physical Activity. 4th ed. Champaign, IL: Humanics Kinetics, 2001.

Cita MLA (9th ed.)

Thomas, Jerry R., i Jack K. Nelson. Research Methods in Physical Activity. 4th ed. Humanics Kinetics, 2001.