Creator
- Oregon State University. Extension Service453
- Oregon State University. Agricultural Experiment Station251
- Oregon. State Game Commission153
- Oregon State University91
- Oregon State College. Agricultural Experiment Station64
- Oregon State College. Federal Cooperative Extension Service61
- Oregon. Dept. Of Geology And Mineral Industries59
- Oregon Agricultural College. Experiment Station54
- Jackson, T. L. (Thomas Lloyd), 1922 50
- Oregon State University. Forest Research Laboratory48
- Oregon. Department Of Fish And Wildlife43
- Oregon State University. College Of Forestry41
- Southern Oregon Agricultural Experiment Station40
- Oregon State Agricultural College. Agricultural Experiment Station33
- Oregon State University. Water Resources Research Institute33
- Westigard, Peter H.33
- Oregon State College. Extension Service30
- Breithaupt, L. R. (Le Roy), 1886 27
- Et Al.26
- United States. Agricultural Research Service25