@book{14570,
	author = {Dalvarade, Rodolfo and Deni, Graciela},
	title = {Medimos, aproximamos y graficamos},
	publisher = {Ediciones La Llave},
	year = {1999},
	series = {Enfoques en educación},
	address = {Buenos Aires},
	note = {Contiene direcciones de internet p. 169-171}
}