@book{85373,
	author = {Zill, Dennis G. and Dewar, Jacqueline M.},
	title = {Algebra y trigonometría},
	publisher = {McGraw- HIll,},
	year = {2000.},
	address = {Santafé de Bogotá :},
	edition = {2 ed. rev.},
	note = {Trad. de : Algebra and trigonometry, 2ed. 1990}
}