- Oregon State University. Extension Service32
- Frischknecht, W. Dean19
- Oregon State University. Agricultural Experiment Station9
- Frischknecht, Dean8
- Oregon State University. Cooperative Extension Service5
- Johnson, Duane P.4
- Landers, John H. (John Herbert), 1921 4
- Reynolds, Guy E.4
- Adams, H. P. (Holyoke Purinton), 1922 3
- Jeffreys, Bradford J.3
- Arnold, Mary2
- Black, Lynette2
- Bogart, Ralph, 1908 2
- Killingsworth, Ken2
- Landers, John2
- Landers, John H., jr.2
- Miller, J. C.2
- Oregon State College. Agricultural Experiment Station2
- Oregon State University2
- Oregon State University. Federal Cooperative Extension Service2