Yazar
William Everett Thorne
2 cilt bulundu.
Cilt sonuçları
Mining of alluvial deposits by dredging and hydraulicking
William Everett Thorne · Mining publications, ltd.
191 sayfa · 1929
Dredging / Gold mines and mining / Hydraulic mining / Mining engineering
Testing and estimating alluvials for gold, platinum, diamonds, or tin
William Everett Thorne · Mining Publications, ltd.
52 sayfa · 1926
Mine examination / Ores / Sampling and estimation

