Program: HathiTrust Digital Library
- Publisher: National Science Foundation
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 21438589
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1981; 1987; 1990; 1993
|
committed to retain | 2022-01-28 | HTDL |
|