Program: HathiTrust Digital Library
- Publisher: The Observatory
- Print ISSN: 0305-2001
- Electronic ISSN:
- OCLC Number: 6099869
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.1 1939-1955; v.1 1955; v.2 1956-61; v.3-4 1962-64; v.4 1964; v.3 1962-65; v.5 1965-1967; v.5 1965-67; v.6 1967-1969; v.6 1967-69; v.8 1971; v.7 1970-1972; v.7 1970-72; v.9:1 1973; v.9:2 1974; v.9:3 1974; v.9:4 1976; v.9 1973-1978; v.9:5 1978
|
committed to retain | 2014-10-02 | HTDL |
|