Dangos 1 - 2 canlyniadau o 2 ar gyfer chwilio 'Truscott, Samuel John, 1870-', amser ymholiad: 0.01e Mireinio'r Canlyniadau
  1. 1

    Mine economics sampling, valuation, organization, administration gan Truscott, Samuel John, 1870-

    Cyhoeddwyd 1947
    Llyfr

    Mine economics sampling, valuation, organization, administration
  2. 2

    A textbook of ore dressing gan Truscott, Samuel John 1870-

    Cyhoeddwyd 1923
    Llyfr

    A textbook of ore dressing

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