. Timber measurement problems in the Douglas-fir region of Washington and Oregon. Forests and forestry Washington (State) Mensuration; Forests and forestry Oregon Mensuration. 20. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bruce, David, 1916-; Cowlin, R. W. (Robert William), 1899-. [Portland, Or. ] : Pacific Northwest Forest and Range Experiment Station

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Keywords: ., bo, bookcentury1900, bookcollectionbiodiversity, bookleafnumber32