@book{12528,
	author = {Protter, Murray H. and Morrey, Charles B.},
	title = {Cálculo y geometría analítica :},
	publisher = {Fondo educativo interamericano,},
	year = {1975.},
	series = {Serie bilingua español-english},
	address = {Bogotá :},
	note = {Contiene ejercicios.}
}