Effects of grazing upon western yellow-pine reproduction in the national forests of Arizona and New Mexico
By: by Robert R. Hill.
Series: Bulletin / United States Department of Agriculture -- no. 580.; Bulletin of the U.S. Department of Agriculture -- no. 580.
Publisher: U.S. Dept. of Agriculture
Published: 1917
Place of publication: Washington, D.C
Language: eng
Number of pages: 27
Subjects: Grazing -- Arizona; Grazing -- New Mexico; Forests and forestry -- Arizona; Forests and forestry -- New Mexico; Yellow pines
Notes: Caption title.

"December 21, 1917."

"Professional paper."