Program: HathiTrust Digital Library
- Publisher: Iowa Geological Survey
- Print ISSN: 0271-8790
- Electronic ISSN: 0271-8790
- OCLC Number: 6283140
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.2 (1990)
|
committed to retain | 2015-11-21 | HTDL |
|