@book{929,
	author = {Gracia, Enrique Aldo De and Checa, Juan Carlos},
	title = {Cálculo diferencial e integral.},
	publisher = {Charafedín, },
	year = {1984.},
	address = {Córdoba : },
	edition = {1ra.ed.},
	note = {Bibliografía al final del libro. }
}