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Author/Creator
- Geological Survey (U.S.)278
- United States. National Aeronautics and Space Administration193
- Planetary Geology Program (U.S.)111
- United States. Agency for International Development34
- Afghanistan. Department of Geological Survey31
- Afghanistan. Idārah-i ʻUmūmī-i Jiyūdīzī va Kārtūgrāfī31
- Davis, Philip A. (Philip Arthur), 1950-31
- Turner, Kenzie J.31
- Planetary Geology and Geophysics Program (U.S.)24
- Brock, John C.10
- Tanaka, Kenneth L.10
- United States. National Park Service10
- Casebier, Darlene A.9
- Hirsch, Derrick D.9
- United States. National Oceanic and Atmospheric Administration9
- Carroll, Roger D.8
- Jet Propulsion Laboratory (U.S.). Magellan Project Office8
- United States. Department of the Interior8
- Astrogeology Research Program (Geological Survey)6
- Head, James W.6