por Leonard, Jonathan Norton, 1903-1975 [autor] | Escalona, Eduardo [traductor].
por Clairborne, Robert [autor] | Time-Life Books | Clairborne, Robert. First americans.
por Farb, Peter [autor] | Martinez, Jose [traductor] | Time-Life Books | Farb, Peter. Land and wildlife of North America.
por Bates, Marston, 1906-1974 [autor] | Calvet, Fernando [traductor] | Time-Life Books | Bates, Marston, 1906-1974. Land and wildlife of North America.