The National Geographic Magazine, Volume 112, Number 6 (December, 1957).
Soft Cover, Washington: National Geographic Society, 1957. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1957. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1958. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1964. Very Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1958. Good with no dust jacket.