The Pine trees of the Rocky Mountain region
Series: Bulletin / United States Department of Agriculture -- no. 460; Department bulletin (United States. Dept. of Agriculture) -- no. 460
Publisher: U.S. Dept. of Agriculture
Published: 1917
Place of publication: Washington, D.C
Language: eng
Number of pages: 47
Subjects: Forests and forestry; Pine
Notes: Contribution from the Forest Service.

"Professional paper."