- United States. Forest Service. Pacific Northwest Region20
- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)9
- Topik, Christopher6
- United States. Forest Service. Pacific Northwest Region.4
- Halverson, Nancy M.3
- Hemstrom, Miles A.3
- Brockway, Dale G.2
- Bryant, Larry D.2
- Clausnitzer, Rodrick R.2
- Diaz, Nancy M.2
- Franklin, Jerry F.2
- Hall, Frederick C.2
- Harkleroad, Glenn R.2
- Mccain, Cindy2
- Ottmar, Roger D.2
- van Vickle, Robert2
- Alvarado, Ernesto1
- Amaranthus, Michael P.1
- Anderson, Harry William1
- Ballard, Teena M.1