Program: HathiTrust Digital Library
- Publisher: Geological Survey
- Print ISSN: 0378-0422
- Electronic ISSN:
- OCLC Number: 6462274
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.2 (1970); no.4 (1971); no.8 (1975); 1979:1; 1982:1; 1985:2; 1985:1
|
committed to retain | 2013-05-02 | HTDL |
|