Subsurface geology and coal resources of the Pennsylvanian system in certain counties of the Illinois basin.
| Corporate Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Urbana,
[publisher not identified] ;
1951.
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| Series: | Report of investigations (Illinois State Geological Survey) ;
no. 148. |
| Subjects: |
| Physical Description: | 123, 151 pages : illustrations |
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| Bibliography: | Bibliographical footnotes. |