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Webster, R. (1962). Gems; Their Sources, Descriptions and Identification. London: Butterworths. Butterworth.
Mills, RA and Harrison, K. (eds) (1998). Modern Ocean Floor Processes and the Geological Record. London: Geological Society Special Publication No.148 1st ed. Geological Society of London.
Clifford, TN and Gass IG. (eds). (1970). African Magmatism and Tectonics. Edinburgh: Oliver & Boyd, 1st edition. 461pp. HB. Oliver and Boyd.
Nixon, Peter H. , ed. (1973). Lesotho Kimberlites. Lesotho National Development Corporation. 350pp. + fold out map, ‘Kimberlite and Dolerite Intrusions. Lesotho Gov't..
Spry, Alan (1969). Metamorphic Textures. Oxford: Pergamon Press. 1st edition. 350pp. PB, minor wear,. Pergamon Press.
Hatch, FH, Wells AK & MK (1956). The Petrology of Igneous Rocks. London: Thomas Murby, 10th ‘rewritten’ edition. 12th impression. 469pp. HB. Thomas Murby.
Marmo, V. (1971). Granite Petrology and the Granite Problem. London, Amsterdam: Elsevier. 242pp. HB. Elsevier.
Hall, Anthony. (1995). Igneous Petrology. Harlow; Longman Technical & Scientific. 5th reprint. 573pp. First published in 1987. PB. Longman et al.