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  1. 1
    Delwedd Flaen

    Seismic signals from mining operations and the Comprehensive Test Ban Treaty comments on a draft report by a Department of Energy working group /

    Cyhoeddwyd 1998
    An electronic book accessible through the World Wide Web; click to view
    Electronig eLyfr

    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:
  2. 2
    Delwedd Flaen

    Rockbursts case studies from North American hard-rock mines / gan Blake, Wilson

    Cyhoeddwyd 2003
    An electronic book accessible through the World Wide Web; click to view
    Electronig eLyfr

    Ychwanegu at ffefrynnau
    Wedi'i Gadw mewn:

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