@book{26623,
	author = {Zill, Dennis. and Dewar, Jacqueline M.},
	title = {Algebra y trigonometria /},
	publisher = {McGraw Hill-Interamericana,},
	year = {2000.},
	address = {Bogotá :},
	edition = {2a ed.},
	note = {Incluye indice.}
}