@book{1245,
	author = {Whitten, Kenneth W. and Davis, Raymond E.},
	title = {General chemistry /},
	publisher = {Cengage Learning,},
	year = {1999.},
	address = {[S.l.] :},
	edition = {6th ed.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0030212146/chopaconline-20}
}