Program: HathiTrust Digital Library
- Publisher: National Academy of Sciences
- Print ISSN: 0419-2648
- Electronic ISSN:
- OCLC Number: 1566698
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1961; 1963-1966; 1965-67; 1965-1967; 1968; 1967-69; 1967-1969; 1970; 1969-71; 1969-1971; 1972; 1971-73; 1971/1973; 1971-1973; 1978; 1972 -1969-71
|
committed to retain | 2015-05-12 | HTDL |
|