The Construction of Small Treated-Timber Bridges in Dubois County, Indiana

Authors

Carl J. Helm

Date of Version

January 1936

Recommended Citation

Helm, Carl J., "The Construction of Small Treated-Timber Bridges in Dubois County, Indiana" (1936). Purdue Road School. 15.
https://docs.lib.purdue.edu/roadschool/1936/proceedings/15

Start Date

1-20-1936 12:00 AM