Program: HathiTrust Digital Library
- Publisher: Iowa Geological Survey
- Print ISSN: 0148-2831
- Electronic ISSN:
- OCLC Number: 3286277
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1971-76; v.1(1976-1978); no.1-3
|
committed to retain | 2016-07-24 | HTDL |
|