Weathering of the Pittsburgh coal bed at the experimental mine near Bruceton, Pa. / by Horace C. Porter and A.C. Fieldner.
Saved in:
| Main Author: | |
|---|---|
| Corporate Author: | |
| Other Authors: | |
| Other title: | Experimental mine near Bruceton, Pa. |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
Govt. Print. Off,
1914.
|
| Series: | Technical paper (United States. Bureau of Mines) ;
35. |
| Subjects: |