Sharkey, B. J., & Davis, P. O. (2008). Hard work : defining physical work performance requirements / Brian J. Sharkey, Paul O. Davis: Defining physical work performance requirements. Human Kinetics.
Chicago Style (17th ed.) CitationSharkey, Brian J., and Paul O. Davis. Hard Work : Defining Physical Work Performance Requirements / Brian J. Sharkey, Paul O. Davis: Defining Physical Work Performance Requirements. Champaign, IL: Human Kinetics, 2008.
MLA (9th ed.) CitationSharkey, Brian J., and Paul O. Davis. Hard Work : Defining Physical Work Performance Requirements / Brian J. Sharkey, Paul O. Davis: Defining Physical Work Performance Requirements. Human Kinetics, 2008.
Warning: These citations may not always be 100% accurate.