APA (7th ed.) Citation

British Geological Survey & Sumbler, M. G. (1996). London and the Thames Valley (4th ed., compiled by M.G. Sumbler.). HMSO.

Chicago Style (17th ed.) Citation

British Geological Survey and M. G. Sumbler. London and the Thames Valley. 4th ed., compiled by M.G. Sumbler. London: HMSO, 1996.

MLA (9th ed.) Citation

British Geological Survey and M. G. Sumbler. London and the Thames Valley. 4th ed., compiled by M.G. Sumbler. HMSO, 1996.

Warning: These citations may not always be 100% accurate.