Program: HathiTrust Digital Library
- Publisher: National Academy of Sciences, National Research Council
- Print ISSN: 0070-4865
- Electronic ISSN:
- OCLC Number: 6654276
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1946-50; 1951-54; 1955-57; v.11-13; v.21 1958; v.22-23 1959; 1961-62; 1963-64; 1969; 1972-1973; 1976-1978
|
committed to retain | 2014-11-14 | HTDL |
|