APA (7th ed.) Citation

British Geological Survey & Tappin, D. R. (1994). The Geology of Cardigan Bay and the Bristol Channel / D.R. Tappin. HMSO.

Chicago Style (17th ed.) Citation

British Geological Survey and D. R. Tappin. The Geology of Cardigan Bay and the Bristol Channel / D.R. Tappin. London: HMSO, 1994.

MLA (9th ed.) Citation

British Geological Survey and D. R. Tappin. The Geology of Cardigan Bay and the Bristol Channel / D.R. Tappin. HMSO, 1994.

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