Program: HathiTrust Digital Library
- Publisher: University of Wisconsin-Extension, Geological and Natural History Survey
- Print ISSN: 0164-2049
- Electronic ISSN:
- OCLC Number: 3505351
- Validation: None
- Retention: permanent
- Institution: HathiTrust
- Facility:
- OCLC Symbol: HATHI
- Holdings Format: Print
| Materials | Archive Action | Date of Action | Program | Status/Note |
|---|---|---|---|---|
|
v.1-4 (1977-80); v.5-8 (1980-83); v.6, 8-10 1982-86; v.11-15 1986-95; v.18 (2001)
|
committed to retain | 2019-03-24 | HTDL |
|