Program: HathiTrust Digital Library
- Publisher: U.S. Directory Service
- Print ISSN: 0278-5153
- Electronic ISSN:
- OCLC Number: 6939188
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1980/1981; 1985/1986; 1987/1988-1989/1990; 1991/1992-1994; 1996-2001; 2002/2003
|
committed to retain | 2013-02-01 | HTDL |
|