Visual quality objectives in Douglas-fir forests
Visual quality objectives in Douglas-fir forests
editor, Ronald W. Walters.
- Portland, Or. Pacific Northwest Region, Forest Service 1991.
- 183 p. col. ill. 24 cm.
doc92000673
Douglas fir--United States.
Forest Management--United States.
doc92000673
Douglas fir--United States.
Forest Management--United States.