Creator
- Oregon. State Game Commission65
- Oregon. Department Of Fish And Wildlife63
- Oregon State Agricultural College. Extension Service55
- Oregon State University51
- Oregon. Dept. Of Geology And Mineral Industries50
- Oregon State University. College Of Forestry42
- Oregon Agricultural College. Extension Service35
- Oregon State College. Engineering Experiment Station32
- Oregon State College. Federal Cooperative Extension Service25
- Institute For Natural Resources21
- Hatfield Marine Science Center20
- Oregon State University Libraries And Press20
- Oregon. Fish Commission20
- Columbia River Gillnetter (Columbia River Fishermen's Protective Union)18
- Oregon State Agricultural College. Agricultural Experiment Station17
- Oregon State University. Dept. Of Computer Science17
- Hamilton, Stanley F.16
- Pacific Northwest Insect Management Conference16
- Pacific Northwest Vegetable Insect Conference16
- United States. Forest Service16