@book{30832,
	author = {Spivak Michael and Marquès Frontera, Bartolomè ,},
	title = {Cálculo infinitesimal },
	publisher = {Reverte,},
	year = {1974},
	address = {Barcelona, España :},
	edition = {2a ed.},
	note = {Incluye glosario e índice}
}