@book{81776,
	author = {Humboldt, Alexander von, and Núñez de Prado, Javier.},
	title = {Cuadros de la naturaleza / },
	editor = {Diamante)},
	publisher = {[s.n., },
	year = {1961] (},
	series = {Obras maestras},
	address = {Barcelona : }
}