@book{8661,
	author = {Páez Cárdenas, Javier},
	title = {Cálculo diferencial de varias variables /},
	publisher = {UNAM, Facultad de Ciencias,},
	year = {2021},
	series = {Las prensas de ciencias},
	address = {México :},
	edition = {2a ed.},
	note = {Incluye índice.}
}