Uphill falling of old-growth Douglas-fir
By: Douglas L. Hunt and John W. Henley.
Contributors: Henley, John W.
Series: General technical report PNW -- 122.; General technical report PNW -- 122.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1981
Place of publication: [Portland, Or.]
Language: eng
Number of pages: 18
Subjects: Douglas fir.; Tree felling -- Northwest, Pacific.
Notes: "April 1981."

Bibliography: p. 18.

Also issued online.