Publications of the Office of Public Roads
Series: Circular -- no. 10; Circular (United States. Department of Agriculture. Division of Publications) -- no. 10.
Publisher: U.S. Dept. of Agriculture, Office of Public Roads
Published: 1912
Place of publication: Washington, D.C
Language: eng
Subjects: Politics and government; Agricultural administration
Notes: "Division of Publications, Circular 10."

"Edition of January 6, 1913."

"December 28, 1912."