@book{201717,
	author = {Griffin, John C.},
	title = {Client-centered exercise prescription},
	publisher = {Human Kinetics},
	year = {c2006.},
	address = {Champaign, IL},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/toc/ecip061/2005029040.html}
}