Raamatud G. A. B. Denny

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

G A B Denny

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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-bear

G. A. B. Denny

Meie tarnija laos

Lisa ostukorvi