National Geographic Magazine, Volume 79 Number 2 (February 1941).
Softcover, Washington: National Geographic Society, 1941. Good with no dust jacket.
Softcover, Washington: National Geographic Society, 1941. Good with no dust jacket.
Softcover, Washington: National Geographic Society, 1941. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1956. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1950. Good with no dust jacket.