Creator
- Oregon State University. Extension Service293
- Oregon. State Game Commission158
- Oregon State University119
- Oregon State University. Agricultural Experiment Station108
- Oregon State College. Agricultural Experiment Station85
- Oregon State Agricultural College. Agricultural Experiment Station80
- Forest Products Laboratory (U.S.)75
- Oregon State University. Cooperative Extension Service55
- Spatafora, Joseph W.42
- Et Al.38
- Oregon. Dept. Of Geology And Mineral Industries38
- Capizzi, Joseph36
- Zimmerman, Martin (Martin Joseph)34
- Lane County Historical Society (Or.)33
- Oregon State University. College Of Forestry33
- Oregon State University. Forest Research Laboratory27
- United States. Agricultural Research Service27
- Oregon State University. Engineering Experiment Station26
- Pacific Northwest Cooperative Extension26
- Columbia Basin Agricultural Research Center25