- Oregon State University. Agricultural Experiment Station[remove]353
- Columbia Basin Agricultural Research Center35
- United States. Agricultural Research Service35
- Oregon State University. Malheur Experiment Station21
- Boersma, L.17
- Klamath County (Or.)16
- Oregon State University. Klamath Agricultural Experiment Station16
- Central Oregon Agricultural Research Center14
- Adair, John, 1927 9
- Stout, Floyd Madison, 1931 9
- United States. Department Of Agriculture9
- Eastern Oregon Agricultural Research Center8
- Oldfield, J. E., 1921 8
- Lindstrom, F. T.5
- Miller, Stanley F.5
- Oregon State College. Agricultural Experiment Station5
- Stoevener, H. H.5
- Suntaree Akratanakul5
- Ungs, M. J. (Michael J.)5
- Gomm, F. B. (Fred Bryant), 1928 4