Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of the Interior, Geological Survey ;
- Print ISSN: 0364-4081
- Electronic ISSN: 0364-4081
- OCLC Number: 1160288
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1964/65 PT.1; 1964/65 PT.2; 1965/66 PT.1; 1965/66 PT.2; 1965-1967; 1966/67 PT.1; 1966/67 PT.2; (1967:pt.2); 1967/68 PT.1; 1967/68 PT.2; 1968-1969; 1968/69 PT.1; 1969/70 PT.1; 1969/70 PT.2; 1970-1971; 1970/71 PT.1; 1970/71 PT.2; 1971/72 PT.1; 1972 pt.1; 1972/73 PT.1; 1972/73 PT.2; 1972-1974; 1973/74 PT.1; 1973/74 PT.2; 1974/1975; 1975-1976; 1976/1977-1980
|
committed to retain | 2019-02-04 | HTDL |
|