Trends in coal utilization /
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Urbana,
[publisher not identified] ;
1947.
|
| Series: | Circular (Illinois State Geological Survey) ;
128. |
| Subjects: |
| Physical Description: | 27 pages : diagrams |
|---|---|
| Bibliography: | Bibliography : pages 25-27. |