General & OtherA study of roof in Pennsylvania mines contiguous to Monongahela RiverJ. W Paul![A study of roof in Pennsylvania mines contiguous to Monongahela River]()
A study of roof in Pennsylvania mines contiguous to Monongahela River
J. W Paul
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“A study of roof in Pennsylvania mines contiguous to Monongahela River” by J. W Paul: a public-domain book in “General & Other”, written in English. Read it…
Catalogue details
- Author
- J. W Paul
- Category
- General & Other
- Language
- English
- Source
- HathiTrust