@book{35280,
	author = {Guillermo Navarro. and Navarro, Guillermo.},
	title = {Cálculo diferencial /},
	publisher = {Editorial Universidad Pontificia Bolivariana,},
	year = {1995.},
	series = {Serie apoyo a la docencia ;},
	address = {Medellin :},
	note = {Incluye indice.}
}