@book{19218,
	author = {Kratz, René Fester. and Siegfried, Donna Rae.},
	title = {Biology essentials for dummies /},
	publisher = {Wiley,},
	year = {c2011.},
	series = {For dummies},
	address = {Hoboken, NJ :},
	note = {Includes index.}
}