Creator
- Oregon State University. Extension Service95
- Oregon State University. Agricultural Experiment Station89
- Oregon State College. Extension Service51
- Forest Products Laboratory (U.S.)48
- Oregon. State Game Commission47
- Oregon State College. Agricultural Experiment Station45
- Oregon State University. College Of Forestry43
- Schuster, C. E. (Carl Ephraim), 1889 34
- Oregon State University. Water Resources Research Institute32
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)32
- Oregon State University. Malheur Experiment Station29
- Schreck, Carl B.28
- United States. Forest Service28
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club27
- Oregon State University. Forest Research Laboratory23
- Pacific Northwest Vegetable Insect Conference23
- Oregon. Fish Commission20
- Oregon State University19
- Lane County Historical Society (Or.)17
- Rietz, Raymond Carl, 1901 17