Mine Sampling and Valuing: A Discussion of the Methods Used in Sampling and Valuing Ore Deposits, with Especial Reference to the Work of Valuation by the Independent Engineer - Couverture souple

Herzig, Charles Simon; Purington, Chester Wells

 
9781294000563: Mine Sampling and Valuing: A Discussion of the Methods Used in Sampling and Valuing Ore Deposits, with Especial Reference to the Work of Valuation by the Independent Engineer

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