- Oregon State University. Agricultural Experiment Station46
- Oregon State University. Extension Service21
- Oregon State University. Malheur Experiment Station15
- Klamath County (Or.)13
- Oregon State University. Klamath Agricultural Experiment Station13
- Pease, James R. (James Robert)8
- Oregon State College. Agricultural Experiment Station7
- Oregon State University. Department Of Geography6
- H.T. Harvey & Associates5
- Kramer, Sharon5
- Nelson, Peter5
- Terrill, Scott5
- Zajanc, David5
- Pomerening, James A.4
- Sorte, Bruce3
- United States. Bureau Of Land Management3
- Weber, Bruce A.3
- Besse, Ralph S. (Ralph Stephen), 1887 2
- Bozza, Maryann2
- Cheung, Itchung2