Program: HathiTrust Digital Library
- Publisher: Ohio Dept. of Natural Resources, Division of Geological Survey
- Print ISSN: 0163-9757
- Electronic ISSN:
- OCLC Number: 2490686
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.1-6; no.1 1975; no.3-6 1976-1979
|
committed to retain | 2019-07-04 | HTDL |
|