LIBROS DEL AUTOR: william s welton

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  • Practical Gold Mining, Its Commercial Aspects
    William S. Welton / William SWelton
    ''Practical Gold Mining, Its Commercial Aspects'' is a book written by William S. Welton and published in 1902. The book is a comprehensive collection of statistics and data relating to the commercial aspects of gold mining and gold mining finance companies. It covers topics such as the history of gold mining, the methods used in gold mining, the cost of production, the market ...
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    30,08 €