@book{210,
	author = {Lewis. and Lewis, David.},
	title = {Organic chemistry : A Modern Prespectives},
	publisher = {Mcgraw-Hill College,},
	year = {1996.},
	address = {[S.l.] :},
	url = {http://www.amazon.com/exec/obidos/ASIN/0697350916/chopaconline-20}
}