@book{21634,
	author = {Ruiz Guiñazú, Enrique, and Alba,},
	title = { La tradición de América / },
	publisher = {Espasa-Calpe, },
	year = {1953.},
	series = {(Colección Austral ; },
	address = {Buenos Aires : },
	url = {http://biblioteca.unm.edu.ar/documentos/imagenes/catalogacion.jpg}
}