Program: HathiTrust Digital Library
- Publisher: Geological Survey Dept
- Print ISSN: 0522-5612
- Electronic ISSN:
- OCLC Number: 2606832
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.15 1979; no.22 1979
|
committed to retain | 2019-03-16 | HTDL |
|