Program: HathiTrust Digital Library
- Publisher: U.S. Geological Survey; [for sale by the Supt. of Docs.] U.S. Govt. Print. Off.
- Print ISSN: 0001-3625
- Electronic ISSN:
- OCLC Number: 1577477
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1966:JA-JE; 1966:JY-D; Jan-June 1966; July-Dec 1966; 1966 July-Dec; 1966 Jan-June; 1967:JA-JE; 1967:JY-D; Jan-June 1967; July-Dec 1967; 1967 Jan-June; 1967 July-Dec; 1968:JA-JE; 1968:JY-D; Jan-June 1968; July-Dec 1968; 1968 Jan-June; 1968 July-Dec; 1969:JA-JE; 1969:JY-D; Jan-June 1969; July-Dec 1969; 1969 Jan-June; 1969 July-Dec; 1970:JA-JE; 1970:JY-D; Jan-June 1970; July-Dec 1970; 1970 Jan-June; 1970 July-Dec; 1971:JA-JE; 1971:JY-D; Jan-June 1971; July-Sept 1971; Oct-Dec 1971; July-Dec 1971; 1971 July-Dec; 1971 Jan-June
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committed to retain | 2019-04-18 | HTDL |
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