Creator
- Oregon. State Game Commission245
- Oregon. Department Of Fish And Wildlife159
- Oregon State College. Federal Cooperative Extension Service157
- Oregon State Agricultural College. Extension Service56
- Oregon. Dept. Of Geology And Mineral Industries54
- Oregon State University. College Of Forestry53
- Oregon State University. Extension Service53
- Oregon. Fish Commission48
- United States. Forest Service47
- Oregon Agricultural College. Extension Service45
- Oregon State University45
- Pacific Northwest Insect Management Conference26
- Columbia River Gillnetter (Columbia River Fishermen's Protective Union)25
- Oregon Agricultural College. Experiment Station25
- Institute For Natural Resources24
- Jackman, E. R. (Edwin Russell), 1894 23
- Oregon State University. Agricultural Experiment Station22
- Oregon. Wildlife Commission22
- Oregon State University Libraries And Press21
- Oregon State University. Department Of Horticulture21