Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of the Interior, National Park Service
- Print ISSN: 0270-076X
- Electronic ISSN:
- OCLC Number: 5170071
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.1-9 1930-1939
|
committed to retain | 2014-09-28 | HTDL |
|