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R.J. Dunham 1962: ‘Classification of carbonate rocks according to depositional texture’, in W.E. Ham (ed.), Classification of Carbonate Rocks, American Association of Petroleum Geologists, Memoir 1, Tulsa, 108–21
K.M.J. Hayward 2006: The Early Development of the Roman Freestone Industry in South-Central England. A Geological Characterisation Study of Roman Funerary Monuments and Monumental Architecture, unpub. PhD thesis, University of Reading
K.M.J. Hayward 2009b: ‘The worked stone’, in J. Taylor, Excavations at Shippams Factory and Sports & Social Club, Chichester, unpub. excavation report