The National Geographic Magazine, Volume 141 (CXLI), No. 2 (February 1972).
Soft Cover, Washington: National Geographic Society, 1972. Very Good with no dust jacket.
Soft Cover, Washington: National Geographic Society, 1972. Very Good with no dust jacket.
Hardcover, New York: The Library of America, 2000. Very Good in Very Good dust jacket.
Hardcover, Petropólis: Editora Index, 1999. Very Good with no dust jacket.
Illustrated by B. Anthony Stewart. Ephemera, Washington, D.C. National Geographic Society, 1954. Good with No dust jacket as issued.
Illustrated by Charles L. Ripper. Hard Cover, New York: Alfred A. Knopf, 1969. First Edition. Very Good in Very Good dust jacket.
Softcover, Exeter, New Hampshire: J. N. Townsend Publishing, 1996. Reprint. Very Good with No dust jacket as issued.