Program: HathiTrust Digital Library
- Publisher: Dept. of Health and Environmental Sciences, Environmental Sciences Division, Air Quality Bureau
- Print ISSN: 0161-1666
- Electronic ISSN: 0161-1666
- OCLC Number: 3851456
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1975-1976
|
committed to retain | 2018-03-03 | HTDL |
|