@book{37727,
	author = {Caballero Calderón, Eduardo.},
	title = {Suramérica, tierra del hombre / },
	editor = {Castilla)},
	publisher = {Guadarrama, },
	year = {1956 (},
	series = {Colección Del Pirineo a los Andes ; },
	address = {Madrid : },
	edition = {2ª ed.}
}