Program: HathiTrust Digital Library
- Publisher: National Academy of Sciences
- Print ISSN: 0004-3729
- Electronic ISSN:
- OCLC Number: 1514345
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.2 1955; v.1/6(1954/1961)
|
committed to retain | 2022-07-25 | HTDL |
|