Program: HathiTrust Digital Library
- Publisher: Geological Survey Dept
- Print ISSN: 0074-1027
- Electronic ISSN:
- OCLC Number: 1588553
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
4 (1957); 5 (1961); 8 (1969)
|
committed to retain | 2016-09-13 | HTDL |
|