Initial thinning effects in 70- to 150-year-old douglas-fir-western Oregon and Washington
By: Richard L. Williamson and Frank E. Price.
Contributors: Price, Frank E.
Series: Research paper PNW -- 117.; Research paper PNW -- 117.
Publisher: Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Published: 1971
Place of publication: Portland, Or
Language: eng
Number of pages: 15
Subjects: Douglas fir -- Oregon -- Thinning; Douglas fir -- Washington (State) -- Thinning
Notes: Cover title.

Bibliography: p. 15.