- Oregon State University. Agricultural Experiment Station[remove]225
- United States. Agricultural Research Service17
- Columbia Basin Agricultural Research Center15
- Oregon State University. Malheur Experiment Station13
- Jackson, T. L. (Thomas Lloyd), 1922 11
- Boersma, L.8
- Eastern Oregon Agricultural Research Center8
- Mack, H. J. (Harry John), 1926 7
- United States. Department Of Agriculture7
- Bedell, Thomas E.6
- Central Oregon Agricultural Research Center5
- Klamath County (Or.)5
- Oregon State University. Klamath Agricultural Experiment Station5
- Simonson, Gerald Herman, 1927 5
- Cross, Timothy L.4
- Frazier, W. A. (William Allen), 1908 4
- Mack, H. J.4
- Mason, Robert George4
- Oregon State University. Department Of Rangeland Resources4
- Pomerening, James A.4