Plus d’un million de livres à portée de main !
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Charles George Warnford Lock

    Economic Mining: A Practical Handbook for the Miner, the Metallurgist and the Merchant
    Workshop Receipts, for Manufacturers and Scientific Amateurs; Volume 2
    Miners' Pocket-Book: A Reference Book for Engineers and Others Engaged in Metalliferous Mining
    A Text-Book of Paper-Making
    Miners' Pocket-Book: A Reference Book for Miners, Mine Surveyors, Geologists, Mineralogists, Millmen, Assayers, Metallurgists, and Metal Me
    Gold Milling: Principles and Practice