Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of Commerce, United States Travel Service, Research & Analysis Division
- Print ISSN: 0146-471X
- Electronic ISSN: 0146-471X
- OCLC Number: 2957287
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1973-75
|
committed to retain | 2013-10-30 | HTDL |
|