Creator
- United States. Forest Service. Pacific Northwest Region. Thirty Year Club18
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)4
- Pacific Northwest Forest Experiment Station (Portland, Or.)2
- Allen, Edward Tyson1
- Alston, Richard M.1
- Bingham, C. W.1
- Clawson, Marion1
- Oregon State University. College Of Forestry1
- Oregon Woodland Publications Council1
- United States Pacific Northwest Forest And Range Experiment Station (Portland, Or.)1
- United States. Bureau Of Land Management1
- United States. Forest Service1
- Vlachos, Evan1