%0 E-Resource %0 U.S. Federal Government Document %0 Book %A Marshall, David D. %E Curtis, Robert O. %E Pacific Northwest Research Station (Portland, Or.) %I U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station %D 2002 %C Portland, Or. (333 S.W. First Ave., P.O.Box 3890, Portland 97208) %G English %B Research paper PNW ; %T Levels-of-growing-stock cooperative study in Douglas-fir : report no. 15, Hoskins, 1963-98 %U http://purl.access.gpo.gov/GPO/LPS21135