Borg, G. (1998). Borg's perceived exertion and pain scales. Estados Unidos: Human kinetics.
Chicago Style CitationBorg, Gunnar. Borg's Perceived Exertion and Pain Scales. Estados Unidos: Human kinetics, 1998.
MLA CitationBorg, Gunnar. Borg's Perceived Exertion and Pain Scales. Estados Unidos: Human kinetics, 1998.
Warning: These citations may not always be 100% accurate.