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Author/Creator
- Geological Survey (U.S.)9
- Albuquerque (N.M.)2
- Anderholm, Scott K.2
- Arkansas Geological Commission2
- Bexfield, Laura M.2
- Westerfield, Paul W.2
- Burt, David E., 1960-1
- Carrasquillo, Ramon A.1
- Dague, Barbara J.1
- Darden, Daphne1
- Mississippi. Bureau of Land and Water Resources1
- Mississippi. Office of Land and Water Resources1
- Oakley, W. T. (William Thomas), 1942-1
- PeĢrez-Blair, Francisco1
- Puerto Rico Aqueduct and Sewer Authority1
- Rosman, Robert1
- United States. Army. Corps of Engineers1
- Western Kansas Groundwater Management District No. 11