Program: HathiTrust Digital Library
- Publisher: State of Ohio, Dept. of Natural Resources, Division of Geological Survey
- Print ISSN: 0097-5478
- Electronic ISSN:
- OCLC Number: 1924773
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.72 1995; no.71 1997; no.73 1998
|
committed to retain | 2010-12-11 | HTDL |
|