@book{342915,
	author = {Salas, Satunino L.},
	title = {Calculus :},
	publisher = {John Wiley & Sons,},
	year = {2003.},
	address = {[S.l.] :},
	edition = {9th Edition ed.},
	note = {Import.},
	url = {http://www.amazon.com/exec/obidos/ASIN/0471383589/chopaconline-20}
}