- Oregon State University. Agricultural Experiment Station65
- Oregon State University. Extension Service35
- Institute For Natural Resources34
- Upper Willamette Resource Conservation And Development Project31
- Oregon State University28
- Minc, Leah D.16
- Oregon State College. Agricultural Experiment Station13
- Oregon State University Extension Service. Resource Conservation And Development Project Office11
- United States. Soil Conservation Service10
- Boersma, L.9
- Cusack, Kate9
- Mills, Jock9
- Sanderson, Rebecca A.9
- Compton, O. C. (Oliver Cecil), 1903 8
- Western Dry Kiln Clubs8
- Le, Edward A.7
- Oregon State University. Cooperative Extension Service7
- Mellenthin, Walter M., 1920 6
- Sherson, Brian6
- Avery, Bonnie E.5