Forty-year development of Douglas-fir stands planted at various spacings
By: by Donald L. Reukema.
Series: Research paper PNW -- 100.; Research paper PNW -- 100.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture
Published: 1970
Place of publication: Portland, Or
Language: eng
Number of pages: 21
Subjects: Douglas fir -- Spacing
Other titles: Forty year development of Douglas-fir stands planted at various spacings.
Notes: Cover title.

Bibliography: p. 21.