Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of the Interior, Geological Survey ;
- Print ISSN: 0364-4081
- Electronic ISSN: 0364-4081
- OCLC Number: 10307502
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1981; 1984-1985; 1986-1987; 1988-1997
|
committed to retain | 2013-05-03 | HTDL |
|