@book{205320,
	author = {Coffman, Sandy},
	title = {Successful programs for fitness and health clubs},
	publisher = {Human Kinetics},
	year = {c2007.},
	address = {Champaign, IL},
	note = {ESTE LIBRO INCLUYE UN DISCO},
	url = {http://www.loc.gov/catdir/toc/ecip078/2007000689.html}
}