Program: HathiTrust Digital Library
- Publisher: Optical Pub. Co.
- Print ISSN: 0191-0647
- Electronic ISSN:
- OCLC Number: 4770436
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.33(1987:2-3); 34(1988:1); 34(1988:2-3); 33(1987:1); 32(1986:1-3); 28(1982); 27(1981:1-2); 30(1984); 31(1985); 29(1983)
|
committed to retain | 2015-01-15 | HTDL |
|