Studies on the ultrafine structure of some Illinois coals /
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Urbana,
[publisher not identified] ;
1963.
|
| Series: | Circular (Illinois State Geological Survey) ;
350. |
| Subjects: |
| Item Description: | At head of title: State of Illinois, Dept. of Registration and Education. |
|---|---|
| Physical Description: | 12 pages : illustrations |
| Bibliography: | Bibliography: page 12. |