Program: HathiTrust Digital Library
- Publisher: Northwestern University, Dearborn Observatory
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 64210374
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.1 1915; v.2 1925; v.3 1935; v.4 1943; v.5 1947; v.6-7 1946-1958
|
committed to retain | 2021-01-01 | HTDL |
|