Annual geological excursion.
- Publisher: Michigan Geological Society
- Print ISSN:
- Electronic ISSN:
- OCLC Number: 5301378
- Subject: Geology Michigan Basin (Mich. and Ont.) Guidebooks.
- Subject code: QE
- Publication history: 1957-1959.
Print Holdings
| Archiving Institution | Program | Holdings Description | Retention |
|---|---|---|---|
| HathiTrust (HATHI) | HTDL | 1950; 1965-1969; 1971-1973; 1979-1980 | permanent |