Defect estimation for grand fir in the Blue Mountains of Oregon and Washington
By: Paul E. Aho.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: USDA Forest Service research paper PNW -- no. 175.; USDA Forest Service research paper PNW -- 175.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service
Published: 1974
Place of publication: Portland, Or
Language: eng
Number of pages: 12
Subjects: Fir.; Forests and forestry -- Valuation.
Notes: Cover title.