Program: HathiTrust Digital Library
- Publisher: Dept. of Environmental Control
- Print ISSN: 0193-872X
- Electronic ISSN: 0193-872X
- OCLC Number: 4023512
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1971
|
committed to retain | 2017-02-25 | HTDL |
|