Robertson, R. J. (2004). Percieved exertion for practitioners: Rating effort with the omni picture system. Human Kinetics.
Styl ChicagoRobertson, Robert J. Percieved Exertion for Practitioners: Rating Effort with the Omni Picture System. Usa: Human Kinetics, 2004.
Citace podle MLARobertson, Robert J. Percieved Exertion for Practitioners: Rating Effort with the Omni Picture System. Human Kinetics, 2004.
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