by Curtis, Robert O
Published in Western journal of applied forestry (01.10.2010)

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

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

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

by Curtis Robert O
Published in United States. Pacific Northwest Forest and Range Experiment Station. U.S.D.A. Forest Service general technical report PNW (USA). no. 155 (1983)

by Carey, A.B. (Pacific Northwest Research Station, USDA FS, Olympia, WA.), Curtis, R.O
Published in Wildlife Society bulletin (01.12.1996)

by Murray, M.D, Coble, D, Curtis, R.O
Published in Canadian journal of forest research (01.08.1991)

by Curtis Robert O, Clendenen Gary W, DeMars Donald J
Published in United States. Pacific Northwest Forest and Range Experiment Station. U.S.D.A. Forest Service general technical report PNW (USA). no. 128 (1981)

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, Robert O
Year of Publication 2008

by Curtis, Robert O
Year of Publication 2007

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

by Curtis, Robert O
Year of Publication 1998

by Curtis, Robert O, Marshall, David D
Year of Publication 2005

by Curtis, Robert O
Published in United States. Pacific Northwest Forest and Range Experiment Station. U.S.D.A. Forest Service general technical report PNW (USA) (1982)

by Curtis, Robert O, Marshall, David D, DeBell, Dean S
Year of Publication 2004

by Curtis, Robert O
Year of Publication 1966

by Curtis, Robert O
Year of Publication 1966

by Curtis, Robert O, Clendenen, Gary W, Henderson, Jan A
Year of Publication 2000

by Curtis, R.O. (Pacific Northwest Research Station, Forestry Sciences Laboratory, Olympia, WA), Marshall, D.D
Published in Western journal of applied forestry (01.07.1989)