Program: HathiTrust Digital Library
- Publisher: National Academy of Sciences
- Print ISSN: 0145-6660
- Electronic ISSN:
- OCLC Number: 2756899
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1976; 1976-1977; 1977-1978; 1978-1979; 1979; 1978-1980; 1980
|
committed to retain | 2011-04-22 | HTDL |
|