Program: HathiTrust Digital Library
- Publisher: Iowa Geological Survey
- Print ISSN: 0277-6634
- Electronic ISSN:
- OCLC Number: 7608412
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.4-7 1981-84
|
committed to retain | 2018-10-21 | HTDL |
|