Program: HathiTrust Digital Library
- Publisher: Systems and Procedures Exchange Center
- Print ISSN: 1048-3977
- Electronic ISSN:
- OCLC Number: 17689312
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1973-88; 1988 Oct.; 1977-1989; 1977-1990; 1977-1991; 1973-1993
|
committed to retain | 2010-09-30 | HTDL |
|