Mineral raw materials in Africa : Tunsten, Columbium and Tantalium Resources

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1980-12Author(s)/Corporate Author (s)
United Nations. Economic and Social Council;United Nations. Economic Commission for Africa;
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This document presents the regional conference of the development and Utilization of mineral resources of Africa, of the Mineral RAW materials in Africa Tungsten, Columbium and Tantalum Resources held in Arusha, form 2 to 6 February 1981.