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30 Years of National Geographic Specials (1995) Script Editor |
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30 Years of National Geographic Specials (1995) Researcher |
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Jewels of the Caribbean Sea (1994) Script Editor |
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Jewels of the Caribbean Sea (1994) Researcher |
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National Geographic: Splendid Stones (1991) Script Editor |
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National Geographic: The Volga (1977) Researcher |
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Zoos of the World (1970) Researcher |