Program: HathiTrust Digital Library
- Publisher: Dept. of Mines and Technical Surveys, Dominion Observatories
- Print ISSN: 0704-3082
- Electronic ISSN:
- OCLC Number: 2442658
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.81 1968; no.86 1969; no.88 1969
|
committed to retain | 2020-10-13 | HTDL |
|