@book{207809,
	author = {American College of Sports Medicine.},
	title = {Manual de consulta para el control y la prescripción de ejercicio /},
	publisher = {Editorial PaidoTribo},
	year = {c2008.},
	address = {Barcelona},
	url = {http://www.loc.gov/catdir/enhancements/fy0712/2004063299-d.html}
}