Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of the Interior, U.S. Geological Survey ; National Technical Information Service, distributor
- Print ISSN: 0741-6296
- Electronic ISSN:
- OCLC Number: 1691424
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1972; 1979-1980
|
committed to retain | 2010-02-08 | HTDL |
|