Publicado por National Geographic Society, Washington DC, 1977
Librería: JBK Books, North Manchester, IN, Estados Unidos de America
Original o primera edición
Hardcover. Condición: As New. 1st Edition. 200pp; Index; illustrated endpapers. No library stamps. No ownership markings. No writing or highlighting of text. Clean, tight, complete; profusely illustrated with b/w and color illustrations, maps and photographs.