Flotation

Crozier, Ronald D.

Base- Metal Sulphide ore in the man shield ( Archean and paleoproterozoic in west africa )

Schwartz, Michael O.

Precis de petrographie

Jung, Jean, 1896-

Glacial and Pleistocene geology

Flint, Richard Foster, 1902-

Principles of geochemical prospecting

Ginzburg, I. I.