test planting of 2-0 and 3-0 Douglas-fir trees on a steep south slope
By: by Carl M. Berntsen.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: Research note -- no. 165.; Research notes (Pacific Northwest Forest and Range Experiment Station (Portland, Or.)) -- no. 165.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1958
Place of publication: Portland, Or
Language: eng
Subjects: Douglas fir -- Growth -- Oregon -- H.J. Andrews Experimental Forest.; Forest management -- Oregon -- H.J. Andrews Experimental Forest.
Notes: Caption title.

"December 1958."

Also issued online.