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![](./img/clear.gif) 1.- ANNUAL Technical Report of the Geological Survey of South-Africa 1988
Department of Mineral and Energy Affairs
Pretoria: Geological Survey, 1989
IV / 1 - 10 - 15
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![](./img/clear.gif) 2.- Geology of kings canyon national park
Department of Mineral and Energy Affairs
Darwin: Government Printer Northen Territory, 1988
IV / 1 - 6 - 7
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![](./img/clear.gif) 3.- South Africa's mineral industry (1985)
P.J. Hugo; Department of Mineral and Energy Affairs
Johannesburg: Department of mineral and Energy affairs, 1985
IV / 10 - 7 - 7
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