Sheet memoir 256, 257, 270, 271 (2004). Geology of London. Ellison, R. et al. London: British Geological Survey. 1st edition
Sheet memoir 256, 257, 270, 271 (2004). Geology of London. Ellison, R. et al. London: British Geological Survey. 1st edition. 114 + x pp. Paperback, A4 format. Minor wear, binding sound, clean unmarked text. In very good condition. Still the current edition, at BGS @ £24.
About the England & Wales Sheet Memoirs
These 20th century reports, specific to the one inch geological map for the area, were published by the Geological Survey of England and Wales.