Program: HathiTrust Digital Library
- Publisher: Bureau of Mines and Geology
- Print ISSN: 0073-4438
- Electronic ISSN:
- OCLC Number: 1752510
- 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 (1956-61); no.6 (1967); v.6
|
committed to retain | 2018-01-06 | HTDL |
|