@book{2003,
	author = {Swokowski, Jeffry A. and  Cole, Jeffery A. autor},
	title = {Algebra y trigonometría :},
	publisher = {Thomson, },
	year = {2006},
	address = {México, D. F.  :},
	edition = {Onceava edición},
	note = {Incluye índice.}
}