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: USDA Forest Service research paper PNW -- 286.; Research paper PNW -- 286.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1981
Place of publication: Portland, Or
Language: eng
Number of pages: 13
Subjects: Ponderosa pine -- Growth.; Pine -- Washington (State)
Notes: "July 1981."

Bibliography: p. 13.