Program: HathiTrust Digital Library
- Publisher: The Observatory
- Print ISSN: 0308-5074
- Electronic ISSN:
- OCLC Number: 7928404
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.1-16 1958-59; no.17 1960; no.18-20 1960
|
committed to retain | 2010-08-21 | HTDL |
|