Program: HathiTrust Digital Library
- Publisher: National Mapping Division, U.S.G.S.
- Print ISSN: 1048-5538
- Electronic ISSN: 1048-5538
- OCLC Number: 11811065
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1985Winter-1986Winter/1987Spring-1990Fall 1985-1990; no.3,5-12 1986-90
|
committed to retain | 2018-08-28 | HTDL |
|