- Oregon State University. Agricultural Experiment Station8
- Oregon State College. Federal Cooperative Extension Service7
- Oregon State University. Extension Service6
- Oregon Agricultural College. Extension Service4
- Oregon State College. Agricultural Experiment Station4
- Oregon Forest Lands Research Center3
- Bertrand, Paul F.2
- Frazier, W. A. (William Allen), 1908 2
- Hooven, Edward F. (Edward Frank)2
- Knapp, Stuart E.2
- Martin, Danielle K. H.2
- Moore, Larry W.2
- Oregon State University. Cooperative Extension Service2
- Rondon, Silvia I.2
- Saulie Carter, Janet2
- Smith, Dean H.2
- Sprague, Roderick, 1901 2
- Allen, Donald G.1
- Barton, Donald Wilbur, 1921 1
- Berry, Frederick H., 1921 1