Diamond drilling for gold and other minerals, a practical handbook on the use of modern diamond core drills in prospecting and exploiting mineral-bearing properties including particulars of the cost of apparatus and of working
Автор: Denny, George Alfred, 1868-, 188 стр., издатель: "Книга по Требованию", ISBN: 978-5-8811-6068-5


4 из 5, 5 голос(-ов).