Effects of long-term grazing by big game and livestock in the Blue Mountains forest ecosystems. -- Portland : USDA Forest Service, 1994. -- 49 s. : 12 obr., 4 tab., 1 príl. ; 28 cm. -- (General Technical Report ; PNW-GTR-325). -- (Eastside Forest Ecosystem Health Assessment ; Vol. III: Assessment). -- (brož.) : .00

630*120+639.111
ZV001