Program: HathiTrust Digital Library
- Publisher: Research and Technology Bureau, Highway Division, Iowa Dept. of Transportation
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 77717821
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
2005/2006; 2008/2009
|
committed to retain | 2016-04-04 | HTDL |
|