Program: HathiTrust Digital Library
- Publisher: Technical Services Branch, Environmental Protection Service
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 12766640
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1990-1992; 1993 v.1; 1993 v.2; 1994 v.1; 1994 v.2; v.9; v.10
|
committed to retain | 2011-07-15 | HTDL |
|