Program: HathiTrust Digital Library
- Publisher: U.S. Bureau of Mines
- Print ISSN: 0277-6235
- Electronic ISSN:
- OCLC Number: 1768215
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.1; no.5; no.6-7; no.8
|
committed to retain | 2019-10-31 | HTDL |
|