@book{13539,
	author = {Sadava, David. and Heller, Craig H.},
	title = {Life :},
	publisher = {Sinauer Associates ;},
	year = {2008.},
	address = {Sunderland, MA :},
	edition = {8th ed.},
	url = {http://www.loc.gov/catdir/toc/ecip071/2006031320.html}
}