APA aipamena

Roberts, S. (1996). The business of personal training. Human Kinetics.

Chicago Style aipamena

Roberts, Scott. The Business of Personal Training. Champaign, Ill: Human Kinetics, 1996.

MLA aipamena

Roberts, Scott. The Business of Personal Training. Human Kinetics, 1996.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.