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

Sampling of particulate materials theory and practice

Available for University of the Philippines System via ScienceDirect. Click here to access
Also available remotely for University of the Philippines System via ScienceDirect. Click here to access thru EZproxy

Ore microscopy. de réir 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 de réir Smith, Ernest Alfred

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