Timber measurement problems in the Douglas-fir region of Washington and Oregon
By: by David Bruce and Robert W. Cowlin.
Contributors: Cowlin, Robert W. 1899-1992, joint author.
Series: U.S. Forest Service research paper PNW ;; 55
Publisher: Pacific Northwest Forest and Range Experiment Station
Published: 1968
Place of publication: [Portland, Or.]
Language: eng
Number of pages: 29
Subjects: Forests and forestry -- Washington (State) -- Mensuration.; Forests and forestry -- Oregon -- Mensuration.
Notes: Cover title.