Areal geology of the Illinois fluorspar district.
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Urbana,
[publisher not identified] ;
1963-67.
|
| Series: | Circular (Illinois State Geological Survey) ;
342, 385, 413. |
| Subjects: |
| Item Description: | Cover title. |
|---|---|
| Physical Description: | 3 volumes : illustrations, maps (4 folded (2 color) in pocket) ; 25 cm. |
| Bibliography: | Includes bibliographical references. |