Stein, William I. Ten-Year Develompment of Douglas-Fir and Associated Vegetation After Different Site Preparation on Coast Range Clearcuts. Research Paper PNW-RP-473. February 1995 / William I. Stein. -- 1.vyd. -- Portland : U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1995. -- 115 s.:29 obr., 84 tab.
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