Creator
- Oregon State University. Extension Service475
- Oregon State University. Agricultural Experiment Station348
- U.S. International Biological Program. Coniferous Forest Biome152
- United States. Forest Service. Northern Region. State & Private Forestry146
- Oregon State University. Cooperative Extension Service134
- University Of Washington120
- Oregon. Dept. Of Geology And Mineral Industries84
- Oregon. Department Of Fish And Wildlife71
- Oregon State University. Forest Research Laboratory65
- Oregon State University. Water Resources Research Institute62
- Oregon State University. Sea Grant Marine Advisory Program55
- Oregon State University. Extension Service/Marine Advisory Program51
- Mcgregor, Mark D.46
- Gardner, E. Hugh44
- Oregon. State Game Commission39
- Oregon State University. Air Resources Center35
- Upper Willamette Resource Conservation And Development Project35
- Western Dry Kiln Clubs31
- Mansour, N. S.30
- Tunnock, Scott28