The spruce and balsam fir trees of the Rocky Mountain region
By: by George B. Sudworth.
Series: Bulletin / United States Department of Agriculture -- no. 327.; Bulletin of the U.S. Department of Agriculture -- no. 327.
Publisher: U.S. Dept. of Agriculture
Published: 1916
Place of publication: Washington, D.C
Language: eng
Number of pages: 43
Subjects: Spruce -- Rocky Mountains; Balsam fir
Notes: Cover title.

Contribution from the Forest Service.

"Professional paper."