@book{1973,
	author = {Sullivan, Michael and Ibarra Mercado, Víctor Hugo, traductor.},
	title = {Precálculo /},
	publisher = {Prentice-Hall,},
	year = {1997},
	address = {México, D. F. :},
	edition = {Cuarta edición},
	note = {Incluye índice. }
}