@book{16293,
	author = {Enger, Eldon D. and Ross, Frederick C.},
	title = {Concepts in biology /},
	publisher = {McGraw-Hill,},
	year = {c2003.},
	address = {Boston :},
	edition = {10th ed.},
	url = {http://www.loc.gov/catdir/description/mh021/2001052131.html}
}