Program: HathiTrust Digital Library
- Publisher: Iowa Geological Survey
- Print ISSN: 0361-7629
- Electronic ISSN: 0361-7629
- OCLC Number: 988652515
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
c.1 v.2 1894; c.1 v.6 1897; c.1 v.12 1901; c.1 v.17 1906; c.1 v.18 1907
|
committed to retain | 2012-05-31 | HTDL |
|