Weathered zones of the drift-sheets of Illinois /
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Book |
| Language: | English |
| Series: | Report of investigations (Illinois State Geological Survey) ;
no. 20. |
| Subjects: |
| Item Description: | At head of title: State of Illinois. Department of registration and education. Reprinted from the Journal of geology, volume xxxviii, number1, Jan.-Feb 1930, pages 28-53. |
|---|---|
| Physical Description: | 28-53 pages : illustrations |