Program: HathiTrust Digital Library
- Publisher: National Academy of Sciences, National Research Council
- Print ISSN: 0070-4865
- Electronic ISSN:
- OCLC Number: 1566639
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
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v.1-10 1936-1946; v.11-15 1947-1951; v.16-20 1952-1956; v.18-22; v.21-23 1957-1959; v.23-24; v.24-25 1960-1961; v.25; v.26; v.26-27 1962-1963; v.27; v.28 1964; v.29 1965; v.30; v.31; v.32; v.33 1969; v.36; v.37
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committed to retain | 2011-06-30 | HTDL |
|