@book{1654,
	author = {de Burgos Román, Juan},
	title = {Cálculo infinitesimal de varias variables},
	publisher = {McGraw Hill,},
	year = {2008},
	address = {Madrid, España :},
	edition = {Segunda edición.},
	url = {https://itmsp.museknowledge.com/UOH?qurl=https://libros-uoh.uoh.cl//ebook_3/calculo-infinitesimal-de-varias-variables/}
}