- Pacific Northwest Cooperative Extension243
- Oregon State University. Extension Service198
- Washington State University. Extension90
- University Of Idaho. Extension88
- United States. Department Of Agriculture87
- Washington State University. Cooperative Extension77
- University Of Idaho. Cooperative Extension Service56
- University Of Idaho. Cooperative Extension System28
- Washington State University. Cooperative Extension Service20
- Burrill, L. C.18
- Fitzgerald, Stephen Arthur18
- Mahoney, Ronald Lynn18
- Bennett, Max, 1963 17
- Main, Marty L.17
- Parker, Bob17
- Perleberg, Andy17
- Schnepf, Chris17
- Oregon State University. Cooperative Extension Service15
- Schmall, Vicki L.14
- University Of Idaho. Agricultural Extension Service10