Program: HathiTrust Digital Library
- Publisher: National Park Service, U.S. Dept. of the Interior; For sale by the Supt. of Docs., U.S. Govt. Print. Off.
- Print ISSN: 0272-9717
- Electronic ISSN:
- OCLC Number: 5778314
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1979; 1985; 1987; 1991
|
committed to retain | 2012-11-09 | HTDL |
|