@book{1182,
	author = {Leithold, Louis and Eroles Gómez, Antonio},
	title = {El cálculo},
	publisher = {Harla},
	year = {1992},
	address = {México :},
	edition = {6a. ed},
	url = {https://biblioeco.unsa.edu.ar/pmb/images/libros/L125788.jpg}
}