| Title: | The national system of interstate and defense highways [map] : status of improvement as of March 31, 1969. |
| Author: | United States Bureau of Public Roads. |
| Situation Date: | 1969 |
| Publication Date: | 1969 |
| Type: | Print |
| Features: | States, Interstates, cities. |
| Comments: | Features Note: Contains Index and bar graph illustrating five categories of construction status as of March 31, 1969. |
| Coverage: | United States. |
| Repository: | Mississippi Department of Archives and History. |
| Publisher: | [Washington, D.C.] : Bureau of Public Roads, 1969. |
| Size (inches): | 13.7 X 20.4 |
| Link: | https://koha-public.mdah.ms.gov/cgi-bin/koha/opac-detail.pl? biblionumber=72631 |
