Program: HathiTrust Digital Library
- Publisher: National Park Service, U.S. Dept. of the Interior : For sale by the Supt. of Docs., U.S. G.P.O.
- Print ISSN: 1064-1572
- Electronic ISSN:
- OCLC Number: 23378502
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1987/1989; 1987-91; 1990/1991
|
committed to retain | 2012-02-16 | HTDL |
|