Program: HathiTrust Digital Library
- Publisher: Geological Survey, U.S. Dept. of Interior
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 5000479
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.6 (1960); no.14(1964); no.17(1965); no.18(1966)
|
committed to retain | 2017-03-20 | HTDL |
|