The geology and underground waters of northeastern Minnesota.
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
Minneapolis
Univ. of Minnesota Press
1947.
|
| Cyfres: | Bulletin (Minnesota Geological Survey)
32. |
| Pynciau: |