Analyses and measured sections of Pennsylvania Bituminous coals /
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Harrisburg :
[Commonwealth of Pennsylvania] : [Bureau of Topographic and Geologic Survey],
1973
|
| Series: | Bulletin M ;
66 Mineral resource report ; 66 |
| Subjects: |