@book{13404,
	author = {Walter, Henriette. and Martinet, André.},
	title = {La aventura de las lenguas en Occidente },
	publisher = {Espasa-Calpe, },
	year = {D.L. 1997.},
	series = {Espasa de la lengua},
	address = {Madrid : },
	note = {Índices.}
}