Present Status of the Highway Planning Survey

Authors

Gibb R. Harr, U.S. Public Roads Administration

Date of Version

January 1940

Recommended Citation

Harr, Gibb R., "Present Status of the Highway Planning Survey" (1940). Purdue Road School. 18.
https://docs.lib.purdue.edu/roadschool/1940/proceedings/18

Start Date

1-22-1940 12:00 AM