@book{1816,
	author = {Mader, Sylvia S.},
	title = {Student Study Guide to Accompany Biology /},
	publisher = {McGraw-Hill Science/Engineering/Math,},
	year = {1997.},
	address = {[S.l.] :},
	edition = {6 Signed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0697340864/chopaconline-20}
}