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Author/Creator
- Geological Survey (U.S.)31
- National Water-Quality Assessment Program (U.S.)10
- Fendick, Robert B.4
- Tollett, Roland W.4
- Thiros, Susan A.3
- Washington (State). Department of Ecology3
- Ebbert, J. C.2
- Manning, Andrew Harvey2
- Turney, Gary L.2
- Voelker, David C.2
- Brahana, J. V.1
- Breen, Kevin J.1
- Buckles, David R.1
- Carson City (Nev.). Utilities Department1
- Cole, Elizabeth F.1
- Colorado. Division of Minerals and Geology1
- Cummings, T. Ray1
- Edelmann, Patrick1
- Focazio, Michael J.1
- Gaydos, M. W., 1938-1