Program: HathiTrust Digital Library
- Publisher: Dept. of Energy, Mines and Resources, Observatories Branch
- Print ISSN: 0473-5676
- Electronic ISSN: 0473-5676
- OCLC Number: 2442659
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1960 no.2; 1961 no.2; 1961-62; 1962 no.1; 1962 no.2; 1963 no.2; 1963 no.4; 1963-64; 1964NO2 1964; 1964 no.2; 1965 no.2; 1965-66; 1967-68; 1968 no.4; 1961,1963,1965-1966,1968-1969; 1969 no.4
|
committed to retain | 2023-01-01 | HTDL |
|