Pierre Gy's sampling theory and sampling practice heterogeneity, sampling correctness, and statistical process control. di Pitard, Francis F.

Sampling of particulate materials theory and practice

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Ore microscopy. di Cameron, Eugene N. (Eugene Nathan) 1910-

The sampling and assay of the precious metals, comprising gold, silver, platinum, and the platinum group metals in ores, bullion, and products di Smith, Ernest Alfred

Mineralization in the Thanksgiving skarn deposit, Baguio District, Luzon, Philippines di Mamo, Tegist Chernet