Regional maps of vertical magnetic intensity in Illinois /
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Book |
| Language: | English |
| Published: |
Urbana,
[publisher not identified] ;
1961.
|
| Series: | Circular (Illinois State Geological Survey) ;
324. |
| Subjects: |
| Item Description: | Cover title. |
|---|---|
| Physical Description: | 12 pages : illustrations, maps (2 folded in pocket) |
| Bibliography: | Bibliography: page 8. |