Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of the Interior, National Park Service
- Print ISSN: 0192-8031
- Electronic ISSN:
- OCLC Number: 4845264
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1977; 1982
|
committed to retain | 2018-05-06 | HTDL |
|