Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of the Interior, Geological Survey
- Print ISSN: 0148-3803
- Electronic ISSN:
- OCLC Number: 3304895
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1975-1976; 1976-1978; 1980; 1981-1982; 1983-1984
|
committed to retain | 2016-02-19 | HTDL |
|