@book{12121,
	author = {Pignatari, Decio and Losada Castro, Basilio},
	title = {Informacion, lenguaje, comunicacion /},
	publisher = {Gustavo Gili,},
	year = {1977},
	series = {Coleccion Punto y Linea},
	address = {Barcelona :},
	edition = {1a. ed.}
}