Hamblin, R.J.O. et al. (1992). Geology of the English Channel. London: British Geological Survey. 1st
Hamblin, R.J.O. et al. (1992). Geology of the English Channel. London: British Geological Survey. 1st edition. 106 + vii pp. Paperback, A4 format. Negligible wear, binding sound, clean unmarked text. In very good to fine condition. Still the current edition, at BGS @ £30.