A vigor classification for mature western white pine trees in the inland empire
By: C. A. Wellner
Contributors: Northern Rocky Mountain Forest and Range Experiment Station (Missoula, Mont.)
Series: Research note / Northern Rocky Mountain Forest & Range Experiment Station -- no. 110; Research note (Northern Rocky Mountain Forest and Range Experiment Station (Missoula, Mont.)) -- no. 110.
Publisher: Northern Rocky Mountain Forest and Range Experiment Station
Published: 1952
Place of publication: Missoula, Mont
Language: eng
Subjects: White pine; Vitality
Notes: Caption title.

"May 1952."