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    The principles and practice on mine ventilation being a treatise on modern methods of mine ventilation, with a consideration of deep mine problems, explosions, fires, rescue and re... by Perman, David

    Published 1951
    Book

    The principles and practice on mine ventilation being a treatise on modern methods of mine ventilation, with a consideration of deep mine problems, explosions, fires, rescue and recovery work and cognate subjects

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