Program: HathiTrust Digital Library
- Publisher: State of Ohio, Dept. of Natural Resources, Division of Geological Survey
- Print ISSN: 0097-9473
- Electronic ISSN:
- OCLC Number: 1799414
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.1-4; no.4 1975; no.5-8; no.6 1992; no.10; no.13-14 1998
|
committed to retain | 2019-07-04 | HTDL |
|