The geology of the manganese and iron deposits north of Postmasburg, C.P.

Subjects: “…Postmasburg…”
Get full text

n Geografiese beskouing van die Kuruman-Postmasburg-mynbougebied by Roos, Tielman Johannes

Subjects: “…Mines and mineral resources -- South Africa -- Postmasburg…”
Get full text

The mineralogy of the South African manganese ores by De Villiers, J. E.(Jacob Eliza)

Subjects: “…Manganese ores -- South Africa -- Postmasburg…”
Get full text