The National Geographic Magazine, Volume CXI, Number Four (April, 1957).
Illustrated by Jack Potter (Coca Cola ad on back o. Soft Cover, Washington: National Geographic Society, 1957. Very Good with no dust jacket.
Illustrated by Jack Potter (Coca Cola ad on back o. Soft Cover, Washington: National Geographic Society, 1957. Very Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1961. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1959. Good with no dust jacket.
Illustrated by Jack Potter (Coca Cola ad on back o. Soft Cover, Washington: National Geographic Society, 1957. Very Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1956. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1958. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1959. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1959. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1956. Good with no dust jacket.
Soft Cover, Washington, D.C. National Geographic Society, 1958. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1958. Good with no dust jacket.
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, 1956. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1956. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1958. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1958. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1958. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1958. Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1958. Good with no dust jacket.
Soft Cover, Dallas, Texas, U.S.A. Heritage Auction Galleries, 2006. Very Good with no dust jacket.
Hard Cover, New Haven, Ct. Yale University Press, 1920. Good with no dust jacket.
Hard Cover, Yakutsk: Yakutskoe Knizhnoe Izdatelstvo, 1990. Very Good with no dust jacket.
Hardcover, Stroudsburg, Pennsylvania: Dowden, Hutchison & Ross, 1978. First Edition; First Printing. Very Good with no dust jacket.
Hard Cover, Elgin, Ill. David C. Cook Publishing Co., 1909. Good with no dust jacket.