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Act of Parliament, 1851. An Act to define and amend the Mineral Customs of certain Parts of the Hundred of High Peak in the County of Derby,. Parliamentary Act.
Berkman, D.A. and Ryall, W.R. (eds) (1982). Field Geologists’ Manual. Victoria: Australasian Institute of Mining and Metallurgy,301pp, 2nd edition. Hardback,. Australasian IMM.
Viljoen, M.J. and Reimold, W.U. (1999). An Introduction to South Africa’s Geological and Mining Heritage. Mintek.