Dominant ponderosa pines do respond to thinning
By: by James W. Barrett.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: U.S. Forest Service research note PNW -- 9.
Publisher: Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture
Published: 1963
Place of publication: Portland, Or
Language: eng
Subjects: Ponderosa pine -- Thinning -- Oregon -- Pringle Falls Experimental Forest.
Notes: Caption title.

"December 1963."

Includes bibliographical references.