Program: HathiTrust Digital Library
- Publisher: National Geographic Society
- Print ISSN: 1937-9501
- Electronic ISSN: 1937-9501
- OCLC Number: 42793181
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1999
|
committed to retain | 2014-11-09 | HTDL |
|