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0-9
Coal
(5)
The Story of a Piece of Coal : What It Is, Whence It Comes, and Whither It Goes [electronic resource] / Edward A. Martin
Coal, and What We Get from It [electronic resource] / Raphael Meldola
The Coming of Coal [electronic resource] / Robert W. Bruère
The Mentor : The Story of Coal, vol. 6, Num. 6, Serial No. 154, May 1, 1918 [electronic resource] / Charles Fitzhugh Talman
Coal and the coal mines [electronic resource] / Homer Greene
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