Thinning systems for western Oregon Douglas-fir stands
Subtitle: what is best for you?
By: [prepared by William H. Emmingham, and Daniel Green].
Contributors: Green, Daniel.; Oregon State University. Extension Service.
Series: Woodland workbook; EC / Oregon State University Extension Service -- 1132.; Extension circular (Oregon State University. Extension Service) -- 1132.
Publisher: Extension Service, Oregon State University
Published: 1984
Place of publication: Corvallis, Or
Language: eng
Subjects: Douglas fir -- Thinning.
Notes: Title from caption.

"January 1984."