Dangos 1 - 1 canlyniadau o 1 ar gyfer chwilio 'Dunrud, C. Richard', amser ymholiad: 0.01e Mireinio'r Canlyniadau
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    Engineering geology applied to the design and operation of underground coal mines gan Dunrud, C. Richard

    Cyhoeddwyd 1998
    Llyfr

    Engineering geology applied to the design and operation of underground coal mines

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