Program: HathiTrust Digital Library
- Publisher: Department of Mines
- Print ISSN: 0078-2327
- Electronic ISSN:
- OCLC Number: 1696713
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1974 1974; 1975 1975; 1977; 1980
|
committed to retain | 2019-03-10 | HTDL |
|