Creator
- Geological Survey (U.S.)26
- Oregon State University. Water Resources Research Institute11
- Friday, John6
- Miller, Suzanne J.6
- Oregon. Water Resources Dept.4
- Hinkle, Stephen R.2
- Johnson, Rebecca L., 1955 2
- National Water Quality Assessment Program (U.S.)2
- Oregon. Water Resources Department2
- Shelby, Bo, 1948 2
- Altman, Bob1
- Arnold, Gary1
- Bonn, Bernadine A.1
- Bregenzer, Neil S.1
- Brunson, Mark W.1
- Buckhouse, John C.1
- Clark, Peter U., 1956 1
- Collins, John L. (John Leopold), 1948 1
- Davis, Michael W.1
- Denicola, Dean M.1