Author
Geological Survey (U.S.)
43
Geological Society of America
20
Decade of North American Geology Project
9
Weary, David J.
6
Haworth, R. T.
4
Keen, C. E.
4
United States. National Aeronautics and Space Administration
4
Foster, J. W. (John Wells), 1815-1873
3
Lettis, William R.
3
Noller, Jay S.
3
Orndorff, Randall C.
3
Planetary Geology and Geophysics Program (U.S.)
3
Ryan, Darlene A.
3
Sowers, Janet M.
3
Speed, Robert C.
3
United States. National Park Service
3
Whitney, J. D. (Josiah Dwight), 1819-1896
3
Afghanistan. Department of Geological Survey
2
Afghanistan. Idārah-i ʻUmūmī-i Jiyūdīzī va Kārtūgrāfī
2
Alaska. Division of Oil and Gas
2
Bohannon, Robert G.
2
Kellogg, Karl S.
2
Mull, Charles G.
2
Ortega-Gutiérrez, Fernando
2
Southworth, Scott, 1957-
2
United States. Agency for International Development
2
Air Force Center for Engineering and the Environment (U.S.)
1
Alaska. Division of Mining, Land & Water
1
Aleinikoff, John Nicholas
1
Andriveau-Goujon, J.
1
Balkwill, H. R.
1
Barnum, Bruce E.
1
Bayer, K. C.
1
Blackwell, David D.
1
Blake, Clark
1
Booth, Derek B.
1
Brandon, M. T. (Mark Thomas)
1
Brandt, Ted R., 1954-
1
Bridgman, E. C.
1
Bush, Charles A.
1
Byron, Barbara
1
Chanteux, P.
1
Chapman, Robert Mills, 1918-
1
Choubert, Georges
1
Clark, Sandra H. B.
1
Clowes, R. M.
1
Cole, James C.
1
Collin, C. E.
1
Commission for the Geological Map of the World
1
Cowan, Darrell S.
1
more ...