Creator
- Oregon State University. Extension Service179
- Oregon State University. Agricultural Experiment Station141
- Oregon State University88
- Oregon Agricultural College. Experiment Station60
- U.S. International Biological Program. Coniferous Forest Biome55
- Et Al.52
- Oregon State University. College Of Forestry43
- Potter, E. L. (Ermine Lawrence), 1884 43
- Oregon State University. Forest Research Laboratory42
- Oregon State College. Agricultural Experiment Station38
- Burt, Lawrence A.37
- Oregon State College. Federal Cooperative Extension Service37
- University Of Washington34
- Oregon State University. Malheur Experiment Station33
- Oregon. Dept. Of Geology And Mineral Industries33
- Duncan, Andrew A.32
- Forest Products Laboratory (U.S.)29
- Oregon State College. Extension Service29
- Pacific Northwest Forest Experiment Station (Portland, Or.)29
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)27