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 rigide

Purington, Chester Wells; Herzig, C S

 
9780342790111: 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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