Thinning in the Douglas-fir region
By: [Edward C. Harris, Richard Wm. Dingle]
Contributors: Dingle, Richard William.
Series: Stations circular -- 385.; Station circular (Washington Agricultural Experiment Station) -- 385.
Publisher: Washington Agricultural Experiment Station
Published: 1961
Place of publication: [Pullman, Wash.?]
Language: eng
Number of pages: 30
Subjects: Forest thinning.
Notes: Cover title.

"... Originally prepared by Edward C. Harris as a thesis ..."

Bibliography: p. 21-29.