Creator
- Oregon State University. Agricultural Experiment Station232
- Oregon State University150
- Oregon State University. Extension Service130
- Oregon Agricultural College. Experiment Station110
- Oregon State Agricultural College. Agricultural Experiment Station108
- Oregon State College. Agricultural Experiment Station103
- Oregon State University. Forest Research Laboratory88
- Oregon. Dept. Of Geology And Mineral Industries86
- Oregon. State Game Commission81
- Et Al.48
- Oregon State College. Extension Service41
- Peterson, William T.38
- Brodeur, Richard D.35
- Oregon State University. College Of Forestry35
- Forest Products Laboratory (U.S.)34
- Oregon State University. Water Resources Research Institute32
- Lane County Historical Society (Or.)30
- Morrell, Jeffrey J.30
- Institute For Natural Resources28
- U.S. International Biological Program. Coniferous Forest Biome28