Thirteen years of thinning in a Douglas-fir woodland
By: by Norman P. Worthington.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: U.S. Forest Service research note PNW -- 8.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture
Published: 1963
Place of publication: Portland, Or
Language: eng
Subjects: Douglas fir -- Thinning -- Washington (State) -- Grays Harbor County.
Notes: Caption title.

"November 1963."

Includes bibliographical references.