- Pacific Northwest Forest And Range Experiment Station (Portland, Or.)43
- Moravets, F. L.18
- Pacific Northwest Forest Experiment Station (Portland, Or.)9
- Buell, Edward D.8
- Spada, Benjamin7
- U.S. International Biological Program. Coniferous Forest Biome7
- University Of Washington7
- Bones, James T.2
- Gedney, Donald R.2
- Lauridsen, M. J.2
- Taub, F. B. (Frieda B.)2
- Twerdal, Melvin P.2
- Welch, E. B. (Eugene B.)2
- Berger, John M.1
- Bissonnette, Pam1
- Bockheim, James G.1
- Bolles, W. H.1
- Briegleb, Philip A.1
- Briegleb, Philip A. (Philip Anthes), 1906 19961
- del Moral, Roger1