Coal
Pt. 1, Coals of the Monongahela Formation or Upper Productive Coal Measures; Pt. 2, Chemical Analyses and Calorific Tests of the Clarion, Lower Kittanning, Middle Kittanning and Upper Freeport Coals
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Publication
2018 - Creative Media Partners, LLC
Language
English
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Identifiers
- ISBN-139781377598758
- ISBN-101377598756
- Better World Books9781377598758
- Open LibraryOL39111027M
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