@book{31,
	author = {Mader, Sylvia S. and Windelspecht, Michael,},
	title = {Biology /},
	publisher = {McGraw-Hill,},
	year = {c2013.},
	address = {New York, NY :},
	edition = {11th ed.},
	note = {Rev. ed. of: Biology / Sylvia S. Mader. c2010.}
}