Program: HathiTrust Digital Library
- Publisher: National Academy of Sciences
- Print ISSN: 0085-5995
- Electronic ISSN:
- OCLC Number: 64221340
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1st 1927; 2nd 1930; 3rd 1937; 6th 1955; 7th 1961; 8th 1968; 9th 1971
|
committed to retain | 2012-12-10 | HTDL |
|