APA ציטוט

Robertson, R. J. (2004). Percieved exertion for practitioners: Rating effort with the omni picture system. Human Kinetics.

Chicago Edition Citation

Robertson, Robert J. Percieved Exertion for Practitioners: Rating Effort with the Omni Picture System. Usa: Human Kinetics, 2004.

ציטוט MLA

Robertson, Robert J. Percieved Exertion for Practitioners: Rating Effort with the Omni Picture System. Human Kinetics, 2004.