Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of the Interior, Geological Survey ; National Technical Information Service, distributor
- Print ISSN: 0364-4375
- Electronic ISSN:
- OCLC Number: 9050589
- 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; 1989-1994; 1994-1995; 1995-2005
|
committed to retain | 2012-04-07 | HTDL |
|