Lenahan, W.C.
Assay and analytical practice in the south african mining industry - Johannesburg The South African Institute 2001 - 636 p.
620092246
Ores-sampling and estimation
622.1 / LEN
Assay and analytical practice in the south african mining industry - Johannesburg The South African Institute 2001 - 636 p.
620092246
Ores-sampling and estimation
622.1 / LEN