- Oregon State University. Extension Service1,007
- Oregon State University. Agricultural Experiment Station191
- Oregon State College. Federal Cooperative Extension Service189
- Forest Products Laboratory (U.S.)128
- Oregon State University. Cooperative Extension Service76
- Pscheidt, Jay W.71
- Hart, John M. (John Mervyn), 1947 43
- Mansour, N. S.42
- Oregon State University41
- Oregon State University. Forest Research Laboratory37
- Oregon State University. Malheur Experiment Station37
- Et Al.34
- Bouquet, A. G. B. (Arthur George Bristow), 1885 33
- Morrow, Alice Mills33
- Peachey, Ed31
- Koester, Ardis W.30
- Peachey, Ronald Edward30
- United States. Agricultural Research Service30
- Fisher, Glenn C.28
- Gardner, Ernest Hugh28