Program: HathiTrust Digital Library
- Publisher: U.S. Directory Service
- Print ISSN: 0160-6468
- Electronic ISSN:
- OCLC Number: 3714883
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1978-1979; 1982; 1987; 1991
|
committed to retain | 2021-02-27 | HTDL |
|