APA-referens

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

Chicago-stil citat

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

MLA-referens

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.