Program: HathiTrust Digital Library
- Publisher: Bureau of Mines, U.S. Dept. of the Interior
- Print ISSN: 0198-9464
- Electronic ISSN: 0198-9464
- OCLC Number: 4261800
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1978no.1,6-7,12-13,15-20,22-23 1978; 1979 1979
|
committed to retain | 2023-02-26 | HTDL |
|