AMERICAN ASSN. OF STATE HIGHWAY OFFICIALS.
United States numbered highways, by W. C. Markham.
AMERICAN ASSN. OF STATE HIGHWAY OFFICIALS. United States numbered highways, by W. C. Markham.  © 19Aug29; AA23426.  American Assn. of State Highway Officials (PCW); 24Jul57; R196400.
American Assn. of State Highway Officials|PCW