Program: HathiTrust Digital Library
- Publisher: U.S. Dept. of Health, Education, and Welfare, Public Health Division, Bureau of State Services, Division of Engineering Services, Air Pollution Engineering Program
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 145389177
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1967
|
committed to retain | 2011-07-27 | HTDL |
|