@book{41109,
	author = {Powers, Scott K. and Howley, Edward T.,},
	title = {Exercise physiology :},
	publisher = {McGraw-Hill Higher Education,},
	year = {2009.},
	address = {New York, NY :},
	edition = {7th ed.},
	url = {http://www.loc.gov/catdir/toc/ecip0828/2008040456.html}
}