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Jay W Hawkins
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Cilt sonuçları
Glasshouses & glass manufacturers of the Pittsburgh region, 1795-1910
Jay W. Hawkins · iUniverse
584 sayfa · 2009
Glass factories / History / Glass trade / Glass manufacture
Characterization and effectiveness of remining abandoned coal mines in Pennsylvania
Jay W Hawkins · U.S. Dept. of the Interior, Bureau of Mines
37 sayfa · 1995
Abandoned coal mines / Coal mines and mining / Environmental aspects / Environmental aspects of Abandoned coal mines / Environmental aspects of Coal mines and mining