Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of the Interior, Geological Survey
- Print ISSN: 0499-5279
- Electronic ISSN:
- OCLC Number: 8950152
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1944-47; 1948-51; 1952-55; 1956-60; 1961-62
|
committed to retain | 2017-01-15 | HTDL |
|