Program: HathiTrust Digital Library
- Publisher: The Observatory
- Print ISSN: 0209-7567
- Electronic ISSN:
- OCLC Number: 7632181
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
Materials | Archive Action | Date of Action | Program | Status/Note |
---|---|---|---|---|
v.1-4; v.1-3 1964-77; v.4:1 1980; v.4:2 1981; v.5:1 1983; v.5:2 1983; v.6:1 1986; v.7; v.7 1990
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committed to retain | 2010-08-21 | HTDL |
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