General & OtherFalls of roof in mines operating in the Pittsburgh Coal Bed, West VirginiaJ. W Paul![Falls of roof in mines operating in the Pittsburgh Coal Bed, West Virginia]()
Falls of roof in mines operating in the Pittsburgh Coal Bed, West Virginia
J. W Paul
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“Falls of roof in mines operating in the Pittsburgh Coal Bed, West Virginia” by J. W Paul: a public-domain book in “General & Other”, written in English…
Catalogue details
- Author
- J. W Paul
- Category
- General & Other
- Language
- English
- Source
- HathiTrust