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Washington, DC: National Geographic Society, 1950
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Washington, D.C.: National Geographic Society, 1948
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Washington, DC: National Geographic Society, 1933
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[Washington, D.C.]: Grosvenor, 1929
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Washington, DC: National Geographic Society, 1989
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Washington, DC: National Geographic Society, 1975
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Washington, DC: National Geographic Society, 1974
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Washington, DC: Jude & Detweiler, 1971
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Washington, DC: National Geographic Society, 1969 ; Baltimore, Maryland: Hoehn and Comp., 1969
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Washington, DC: National Geographic Society, 1960
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Washington, DC: National Geographic Society, 1962
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Washington, DC: National Geographic Society, 1961
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Washington, DC: National Geographic Society, 1960
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Washington, DC: National Geographic Society, 1960
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Washington, DC: National Geographic Society, 1961
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Washington, DC: National Geographic Society, 1960
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Washington, DC: National Geographic Society, 1961
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Washington, DC: National Geographic Society, 1960
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Washington, DC: National Geographic Society, 1960
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Washington, DC: National Geographic Society, 1961