Program: HathiTrust Digital Library
- Publisher: Geological Survey Division, Michigan Dept. of Natural Resources
- Print ISSN: 0543-8500
- Electronic ISSN:
- OCLC Number: 1079982
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
no.1 1963; no.2 1963; no.3 1964
|
committed to retain | 2010-12-14 | HTDL |
|