@book{90130,
	author = {Hoffman, Jay},
	title = {Norms for fitness, performance, and health},
	publisher = {Human Kinetics},
	year = {2006},
	address = {Champaign (Illinois, Estados Unidos)},
	url = {http://www.loc.gov/catdir/toc/ecip0518/2005025909.html}
}