Program: HathiTrust Digital Library
- Publisher: Pion Ltd.
- Print ISSN: 0308-2164
- Electronic ISSN:
- OCLC Number: 1945018
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.1-2; v.1 1974; v.2 1975; v.3-4; v.3-4 1976-77; v.5; v.5-6 1978-79; v.6; v.7; v.8; v.9; v.20
|
committed to retain | 2017-05-29 | HTDL |
|