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    Diamond Drilling for Gold and Other Minerals; a Practical Handbook on the Use of Modern Diamond Core Drills in Prospecting and Exploiting Mineral-bearing Properties, Including Particulars of the Cost of Apparatus and of Working

    Diamond Drilling for Gold and Other Minerals; a Practical Handbook on the Use of Modern Diamond Core Drills in Prospecting and Exploiting Mineral-bearing Properties, Including Particulars of the Cost of Apparatus and of Working

    $14.95 USD
    $14.95 USD
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    G. A. (George Alfred) Denny

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