by Williamson R.L, Curtis R.O
Published in PNW research note - United States (1980)

by Curtis R.O, Arney J.D
Published in USDA Forest Service Research Note PNW (USA). no. 297 (1977)

by DeBell, D.S, Harms, W.R, Marquis, D.A, Curtis, R.O
Year of Publication 1984

by Curtis, R.O
Published in Western journal of applied forestry (01.04.2006)

by Curtis, R.O, Herman, F.R, DeMars, D.J
Published in Forest science (1974)

by Curtis, R.O. (Pacific Northwest Research Station, Olympia, WA.), Marshall, D.D, Bell, J.F
Published in Journal of forestry (01.07.1997)

by Curtis, R.O, Marshall, D.D
Published in Western journal of applied forestry (01.07.1993)

by Curtis, R.O, Marshall, D.D
Published in Western journal of applied forestry (2004)

by Curtis R.O
Published in Forest science (1982)

by Curtis, R.O. (Forestry Sciences Laboratory, USDA, FS, Olympia, WA.), Carey, A.B
Published in Journal of forestry (01.09.1996)

by Curtis, R.O
Published in Research paper PNW-RP (USA) (01.04.1994)

by Curtis, R.O
Published in USDA Forest Service general technical report NC - North Central Forest Experiment Station (USA) (1988)

by Curtis, R.O
Published in USDA Forest Service research paper PNW-RP - United States, Pacific Northwest Research Station (USA) (01.08.1987)

by Curtis, R.O
Year of Publication 1985

by Curtis, R.O
Published in Research paper PNW-RP (USA) (1987)

by Curtis R.O
Year of Publication 1977

by Curtis, R.O
Published in USDA Forest Service general technical report WO (USA) (1978)

by Curtis, R.O. (Forestry Sciences Laboratory, Olympia, WA)
Published in Western journal of applied forestry (01.10.1992)

by DeBell D.S, Curtis R.O
Published in Journal of forestry (01.12.1993)

by Curtis, R.O
Published in J Forest (1972)