Creator
- Oregon State University. Extension Service331
- Oregon State University. Agricultural Experiment Station326
- Oregon State University211
- Oregon State College. Agricultural Experiment Station108
- Oregon Agricultural College. Experiment Station97
- Forest Products Laboratory (U.S.)82
- Oregon State University. College Of Forestry73
- Oregon State University. Forest Research Laboratory66
- Oregon. State Game Commission63
- Oregon State College. Extension Service62
- Oregon. Dept. Of Geology And Mineral Industries62
- Oregon. Fish Commission62
- Oregon. Department Of Fish And Wildlife59
- Smith, Robert L. (Robert Lloyd), 1935 56
- Duncan, Robert A.53
- Huyer, Adriana, 1945 52
- Oregon State University. Water Resources Research Institute51
- Fleischbein, Jane50
- James, Robert L.50
- United States. Forest Service48