@book{1718,
	author = {Kaskel,Albert and Hummer,Paul.J},
	title = {Biology :},
	publisher = {Glencoe/Mcgraw-Hill,},
	year = {1999.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0028256859/chopaconline-20}
}