Creator
- Oregon State College. Federal Cooperative Extension Service326
- Oregon State Agricultural College. Extension Service172
- Oregon. State Game Commission108
- Oregon Agricultural College. Extension Service105
- Oregon. Dept. Of Geology And Mineral Industries83
- Oregon. Department Of Fish And Wildlife63
- Oregon State University. Extension Service54
- Oregon State University52
- Jackman, E. R. (Edwin Russell), 1894 47
- Jenkins, Lawrence39
- Oregon. Fish Commission37
- Oregon State University. Cooperative Extension Service36
- Oregon State College. Engineering Experiment Station34
- United States. Forest Service33
- Bouquet, A. G. B. (Arthur George Bristow), 1885 32
- Oregon Agricultural College. Experiment Station29
- Oregon State College. Agricultural Experiment Station29
- Warren, Rex27
- Oregon State University. Federal Cooperative Extension Service26
- Institute For Natural Resources24