Growth of ponderosa pine by Keen tree class
By: Philip A. Briegleb.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: Forest research notes -- no. 32.; Forest research notes (Portland, Or.) -- no. 32.
Publisher: Pacific Northwest Forest and Range Experiment Station
Published: 1943
Place of publication: [Portland, Or
Language: eng
Number of pages: 15
Subjects: Ponderosa pine -- Growth
Notes: Cover title.

"January 15, 1943."

Also issued online.