@book{37155,
	author = {Stewart, James, and Redlin, Lothar},
	title = {Precálculo.},
	publisher = {Cengage Learning,},
	year = {2017.},
	address = {México :},
	edition = {7a ed.},
	note = {Versión original en inglés: Precalculus. Mahematics for calculus}
}