Twenty-year growth of thinned and unthinned ponderosa pine in the Methow Valley of northern Washington
By: James W. Barrett.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: Research paper PNW -- 286.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service
Published: 1981
Place of publication: Portland, Or
Language: eng
Number of pages: 13
Subjects: Ponderosa pine -- Washington (State) -- Growth; Pine -- Washington (State); Ponderosa pine -- Washington (State) -- Thinning
Other titles: Twenty year growth of thinned and unthinned ponderosa pine in the Methow Valley of northern Washington.
Notes: Cover title.

"July 1981."

Bibliography: p. 13.