- Oregon State University. Extension Service14
- Oregon State University. Agricultural Experiment Station8
- Colorado. Department Of Agriculture6
- Delaware. Department Of Agriculture6
- Federal State Market News Service6
- Florida. Department Of Agriculture6
- Idaho. Department Of Agriculture6
- Oregon State University6
- Harris, Tiffin D.3
- Malin, Lucia3
- Oliveira, Ronald A.2
- Oregon State University. College Of Business2
- Oregon State University. College Of Forestry2
- Adams, Richard M.1
- Bedient, Patricia M.1
- Bhagia, Gobind Shewakram1
- Bontrager, Harold Lee1
- Bowman, Sally R., 1949 1
- Brewer, Donald Haden1
- Carrilio, Terry Eisenberg1