Punxsutawney quadrangle; geology and mineral resources,
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
[Harrisburg,
c1926]
[Harrisburg], [1926], [©1926] |
| Series: | Atlas (Pennsylvania. Bureau of Topographic and Geologic Survey) ;
no. 65 |
| Subjects: |