Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of Commerce, United States Travel Service, Office of Research and Analysis
- Print ISSN: 0363-812X
- Electronic ISSN:
- OCLC Number: 2579306
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1969; 1975-1976; 1977 1977
|
committed to retain | 2018-01-05 | HTDL |
|