02023oam 2200529Ka 450 991069630380332120080825161016.0(CKB)5470000002377798(OCoLC)192020614(EXLCZ)99547000000237779820080214d2007 ua 0engtxtrdacontentcrdamediacrrdacarrierSilvicultural research and the evolution of forest practices in the Douglas-fir region[electronic resource] /Robert O. Curtis ... [and others]Portland, OR :U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station,[2007]172 pages digital, PDF fileGeneral technical report PNW ;696Title from title screen (viewed Feb. 12, 2008)."June 2007."Silvicultural systemsWashington (State)HistorySilvicultural systemsOregonHistoryForests and forestryResearchWashington (State)HistoryForests and forestryResearchOregonHistoryForest managementWashington (State)HistoryForest managementOregonHistoryDouglas firWashington (State)Douglas firOregonSilvicultural systemsHistory.Silvicultural systemsHistory.Forests and forestryResearchHistory.Forests and forestryResearchHistory.Forest managementHistory.Forest managementHistory.Douglas firDouglas firCurtis Robert O58619Pacific Northwest Research Station (Portland, Or.)GPOGPOXFFGPOBOOK9910696303803321Silvicultural research and the evolution of forest practices in the Douglas-fir region3436588UNINA