Bark factors for Douglas-fir
By: by Floyd A. Johnson.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: PNW -- 43.; U.S. Forest Service research note PNW -- 34.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture
Published: 1966
Place of publication: Portland, Or
Language: eng
Subjects: Douglas fir.; Bark -- Measurement.
Notes: Caption title.

"January 1966."

Includes bibliographical reference.