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Nixon, Peter H. , ed. (1973). Lesotho Kimberlites. Lesotho National Development Corporation. 350pp. + fold out map, ‘Kimberlite and Dolerite Intrusions. Lesotho Gov't..
Viljoen, M.J. and Reimold, W.U. (1999). An Introduction to South Africa’s Geological and Mining Heritage. Mintek.
Fermanovics, IF, Key, RM, and McEwen, G (eds). 1977. The Limpopo Mobile Belt, Proceedings of a Seminar Pertaining to. Bull. 12, Geological Survey Dept, Republic of Botswana. 1st edn. Geological Survey of Botswana.