Economical considerations and evaluation of harvesting methods adaptable to thinning of second-growth Douglas-fir on steep ground.
Published: 1967
Language: eng
Number of pages: 213
Subjects: Douglas fir.; Forest thinning.
Notes: Thesis (M.F)--University of Washington, 1967.

Bibliography: ℗ . [188] - 192.

Photocopy of thesis.