Program: HathiTrust Digital Library
- Publisher: Iowa Geological Survey
- Print ISSN: 0375-6653
- Electronic ISSN:
- OCLC Number: 2251015
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.1-5; no.1-4 (1971-72); no.5 1972; no.5 (1973); no.7-8 (1974); no.8 1974; no.11 (1978)
|
committed to retain | 2019-07-06 | HTDL |
|