@book{6321,
	author = {Unamuno, Miguel de and Delgado, Josefina},
	title = {Ensayos y artículos},
	publisher = {Centro Editor de América Latina},
	year = {1992},
	series = {Biblioteca básica universal},
	address = {Buenos Aires},
	note = {Estudio preliminar: Josefina Delgado}
}