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Author/Creator
- Geological Survey (U.S.)43
- National Water-Quality Assessment Program (U.S.)3
- United States. Bureau of Reclamation3
- Alaska. Department of Transportation and Public Facilities2
- Bauer, H. H. (Henry Hubert)2
- Curran, Janet H.2
- United States. Environmental Protection Agency2
- United States. National Park Service2
- Wiley, J. B. (Jeffrey B.)2
- Anaya, Roberto1
- Anoka County (Minn.)1
- Armstrong, Daniel J., 1922-1
- Armstrong, David S.1
- Atkins, John T.1
- Baehr, Arthur L.1
- Barlow, Lora K.1
- Battaglin, William A.1
- Bird, Philip H.1
- Blevins, Dale W.1
- Brady, Amie M. G. (Amie Melissa Gifford), 1975-1