Summary of Iowa county engineers annual highway reports.
- Publisher: Dept. of Transportation
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 6664473
- Subject: Roads Iowa Finance Statistics Periodicals.
- Subject code: H
- Publication history:
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1968; 1972; 1977-1984; 1985/1986-1987/1988; 1974-1988/89 (inc.); 1988/1989-1996/1997; 1990/1991-1997/1998 (inc.); 1997/1998-2008/2009 | permanent |