Chromiferous ultrabasic rocks of Eastern Sierra Leone /
Dunham, K. C.(Kingsley Charles),1910-2001,author.
Phillips, R.,author.
Chalmers, R. A.,author.
Jones, D. A.,author.
Great Britain.Colonial Office,issuing body.
Great Britain.Her Majesty's Stationery Office.
Overseas Geological Surveys (Great Britain).Mineral Resources Division..