Volume of traffic on the primary road system of Iowa /
- Publisher: [Iowa Dept. of Transportation]
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 9541733
- Subject: Traffic flow Iowa Statistics Periodicals.
- Subject code: H
- Publication history:
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1990 | permanent |