- Oregon State College. Agricultural Experiment Station18
- Oregon State University. Agricultural Experiment Station15
- Forest Products Laboratory (U.S.)11
- Geyer, Nancy A.11
- Oregon State University. Extension Service11
- Gong, Zhiyuan10
- Spitsbergen, Jan M.10
- Chew, Ti Weng9
- Liu, Lihui9
- Liu, Xing Jun9
- Low, Boon Chuan9
- Oregon State College. Extension Service8
- Oregon. State Game Commission6
- Pacific Northwest Forest Experiment Station (Portland, Or.)6
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club5
- Et Al.4
- Marriage, Lowell D.4
- Baer, Adela S., 1931 3
- Bennett, Andrew F.3
- Burrier, A. S. (Arnold Stewart), 1902 19383