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