Program: HathiTrust Digital Library
- Publisher: Delaware Geological Survey
- Print ISSN: 0418-5269
- Electronic ISSN:
- OCLC Number: 213742500
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
1965/66-1974/75; 1976/1977
|
committed to retain | 2019-05-31 | HTDL |
|