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
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
Название:
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
