The results of physical tests of road-building rock in 1916 and 1917
Contributors: Jackson, Frank H. (Frank Herbert), 1882-
Series: Bulletin / United States Department of Agriculture -- no. 670; Bulletin of the U.S. Department of Agriculture -- no. 670.
Publisher: U.S. Dept. of Agriculture
Published: 1918
Place of publication: Washington, D.C
Language: eng
Number of pages: 30
Subjects: Road materials; Testing
Notes: Caption title.

"June 14, 1918."

"Professional paper."

Chiefly tables.