Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of the Interior, Geological Survey ; For sale by the Supt. of Docs., U.S. G.P.O.
- Print ISSN: 0892-3469
- Electronic ISSN:
- OCLC Number: 12379142
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1984; 1985*; 1986*; 1987*; 1988-89*; 1990/91*
|
committed to retain | 2018-06-17 | HTDL |
|