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Author/Creator
- Geological Survey (U.S.)11
- U.S. Fish and Wildlife Service2
- United States. Bureau of Indian Affairs2
- United States. Bureau of Reclamation2
- Aelion, C. Marjorie (Claire Marjorie)1
- Arkansas Soil and Water Conservation Commission1
- Barron, William R.1
- California Regional Water Quality Control Board--Colorado River Basin Region1
- Columbus (Ohio). Division of Sewerage and Drainage1
- Connell, Joseph F.1
- Densmore, Jill N.1
- Focazio, Michael J.1
- Hallock, Linda L.1
- Hallock, Robert J.1
- Hampton Roads Planning District Commission (Va.)1
- Intergovernmental Resource Center (Wash.)1
- Mahon, Gary L.1
- Myers, Donna N.1
- Oregon. Water Resources Department1
- Portland (Or.). Water Bureau1