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Incoming Resources
- National Geographic Society, Washington, 1975
- Smithsonian Institution Press, Washington, c1986
- The Society, Washington, c1978
- National Geographic Society, Washington, 1969
- National Geographic Society, Washington, 1967
- National Geographic Society, Washington, c1975
- U.S. G.P.O., U.S. G.P.O., Supt. of Docs., distributor, Washington, 2005