Creator
- Oregon. State Game Commission158
- Oregon State University. Extension Service121
- Oregon State University113
- Oregon State University. Agricultural Experiment Station102
- Forest Products Laboratory (U.S.)96
- Oregon State Agricultural College. Agricultural Experiment Station82
- Oregon State College. Agricultural Experiment Station71
- Oregon State University. College Of Forestry38
- Oregon. Dept. Of Geology And Mineral Industries37
- Spatafora, Joseph W.33
- Et Al.31
- Lane County Historical Society (Or.)30
- Oregon State University. Forest Research Laboratory28
- Oregon State University. Cooperative Extension Service27
- Oregon State University. Engineering Experiment Station26
- United States. Agricultural Research Service26
- Columbia Basin Agricultural Research Center24
- United States. Forest Service24
- Markwardt, L. J. (Lorraine Joseph), 1889 21
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club21