Memberships
Citron was a member of many professional organizations and special-interest groups, including the American Institute of Aeronautics and Astronautics, British Interplanetary Society, The Planetary Society, African Wildlife Federation, Friends of the Earth, Greenpeace, Sierra Club, Union of Concerned Scientists, Seattle Astronomical Society, The Nature Conservancy, The Wilderness Society, American Film Institute, Seattle Film Society, Space Frontier Foundation, and the National Space Society.
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