Fifty thousand miles of national highways, four fold system (three fold where the county is the smallest state unit)
Subtitle: national highways, state highways, county roads, township or town roads.
Contributors: National Highways Association.
Publisher: s.n.]
Published: 1915
Place of publication: [Washington?
Language: eng
Subjects: Roads -- United States.
Notes: Signed at end on p. 7: Charles Henry Davis, C.E., President.

Colophon on p. [8] has, " Copyrighted, January 15, 1915, by the National Highways Association, Washington, D.C."