Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of the Interior, Geological Survey ; National Technical Information Service, distributor
- Print ISSN: 0363-1974
- Electronic ISSN:
- OCLC Number: 1160596
- 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; 1965-1966; 1965/66 PT.1; 1965/66 PT.2; 1967; 1967 PT.1; 1967 PT.2; 1967-1968; 1967/68 PT.1; 1967/68 PT.2; 1968/69 PT.1; 1968/69 PT.2; 1969-1970; 1969/70 PT.1; 1969/70 PT.2; 1970/71 PT.1; 1970/71 PT.2; 1971-1972; 1971/72 PT.1; 1971/72 PT.2; 1972/73 PT.1; 1972/73 PT.2; 1973; 1973/74 PT.1; 1973/74 PT.2; 1974-1974/1975; 1975-1976; 1977-1978; 1979-1980
|
committed to retain | 2018-12-14 | HTDL |
|