@book{60719,
	author = {Espinosa, Miguel. and Tierno Galván, Enrique,},
	title = {Las grandes etapas de la historia americana : },
	editor = {Vda. Galo Sáez)},
	publisher = {Revista de Occidente, },
	year = {[1957] (},
	address = {Madrid : }
}