@book{30209,
	author = {Scuorzo, Herbert E.},
	title = {Manual practico de medios audiovisuales /},
	publisher = {Kapelusz,},
	year = {1970.},
	series = {Colección de pedagogia practica},
	address = {Buenos Aires :},
	note = {Apendice : p. 253-259.}
}