Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of the Interior, Geological Survey ; National Technical Information Service
- Print ISSN: 0741-4803
- Electronic ISSN:
- OCLC Number: 9379946
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1981; 1983; 1986; 1989
|
committed to retain | 2013-04-23 | HTDL |
|