Date of Version
January 1939
Recommended Citation
Hatt, W. K., "The Co-operative Highway Research Project" (1939). Purdue Road School. 7.
https://docs.lib.purdue.edu/roadschool/1939/proceedings/7
Start Date
1-24-1939 12:00 AM
COinS
Jan 24th, 12:00 AM
The Co-operative Highway Research Project
