@book{60245,
	author = {Cowell, Hailey A. and ebrary, Inc.},
	title = {Physical activity guidelines for Americans and a review of scientific literature used},
	publisher = {Nova Science Publishers,},
	year = {c2011.},
	series = {Public health in the 21st century},
	address = {Hauppauge, N.Y. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10680838}
}