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Filters: Keyword is chemical and Author is Curtiss, D.A.  [Clear All Filters]
1984
Curtiss, D. A., C. A. Collins, and E. A. Oster. Water-resources of western Douglas County, Oregon In Water-Resources Investigations Report. Vol. no.83-4017 ., 1984.
→ pubs.er.usgs.gov/publication/wri834017
1969
Curtiss, D. A.. Chemical quality of surface water in the Umpqua River Basin, Oregon In Open-File Report / U.S. Geological Survey. Portland, Or.: U.S. Geological Survey, 1969.
→ pubs.usgs.gov/of/1969/0067/report.pdf