RAETTIG, Terry L. - CONNAUGHTON, Kent P. - AHRENS, Glenn R. Hardwood Supply in the Pacific Northwest: A Policy Perspektive. Research Paper PNW-RP-478. January 1995. 1.vyd. Portland : U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1995. 80 s.: 21 obr., 31 tab.