The National Geographic Magazine, Volume 69, Number 4 (April 1936).
Softcover, Washington, D.C. National Geographic Society, 1936. Good with No dust jacket as issued.
Softcover, Washington, D.C. National Geographic Society, 1936. Good with No dust jacket as issued.
Softcover, Washington, D.C. National Geographic Society, 1938. Good with No dust jacket as issued.