The National Geographic Magazine, 109, Number 2 (February 1956).
Soft Cover, Washington: National Geographic Society, 1956. Fair with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1956. Fair with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1954. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1955. Good with no dust jacket.