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    The principles and practice of mine ventilation; being a treatise on modern methods of mine ventilation, with a consideration of deep mining problems, explosions, fires, rescue and... af Penman, David

    Udgivet 1957
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    The principles and practice of mine ventilation; being a treatise on modern methods of mine ventilation, with a consideration of deep mining problems, explosions, fires, rescue and recovery work and cognate subjects

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