Comceptual Approach to Signing Principles in the 1982 Manual

Authors

Richard Larkin, Indiana Department of Highways

Date of Version

March 1982

Recommended Citation

Larkin, Richard, "Comceptual Approach to Signing Principles in the 1982 Manual" (1982). Purdue Road School. 18.
https://docs.lib.purdue.edu/roadschool/1982/proceedings/18

Start Date

3-9-1982 12:00 AM