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Douglas, J.A.; Arkell, W.J. (1928). The stratigraphical distribution of the Cornbrash: I. The south-western area. The Quarterly Journal of the Geological Society of London. 84: 117-177.
Douglas, J.A.; Arkell, W.J. (1928). The stratigraphical distribution of the Cornbrash: I. The south-western area. The Quarterly Journal of the Geological Society of London. 84: 117-177.