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Author/Creator
- Geological Survey (U.S.)106
- Maps.com (Firm)35
- Afghan Geological Survey28
- U.S. Task Force for Business and Stability Operations28
- Davis, Philip A.26
- Cagney, Laura E.10
- Louisiana. Department of Transportation and Development. Water Resources Section8
- Arko, Scott A.7
- Harbin, Michelle L.7
- Seanor, Ronald C.7
- New Hampshire. Water Division5
- Tabor, R. W. (Rowland W.)5
- Fendick, Robert B.4
- Louisiana. Department of Transportation and Development4
- Personius, Stephen F.4
- Smoot, Charles W.4
- Walters, David J.4
- Barras, John A.3
- Brantly, Jeffrey A.3
- Clark, Stewart F.3