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Author/Creator
- Geological Survey (U.S.)97
- United States. National Aeronautics and Space Administration97
- Planetary Geology Program (U.S.)93
- Bonestell, Chesley2
- Boston, Penelope J.2
- Brooke, Walter2
- Case for Mars Conference 1990 : University of Colorado)2
- Fleming, Eric, 1925-19662
- Haskin, Byron, 1899-19842
- Hopper, William, 1915-19702
- Meyer, Thomas R.2
- O'Hanlon, James2
- Pal, George2
- Paramount Pictures Corporation2
- Shaughnessy, Mickey, 1920-19852
- Stoker, Carol R.2
- TVF International (Firm)2
- Wagner, Richard, 1953-2
- Zubrin, Robert2
- American Astronautical Society1