APA (7th ed.) Citation

Great Britain. Drinking Water Inspectorate, Great Britain. Department of the Environment, & Great Britain. Welsh Office. Drinking water. HMSO.

Chicago Style (17th ed.) Citation

Great Britain. Drinking Water Inspectorate, Great Britain. Department of the Environment, and Great Britain. Welsh Office. Drinking Water. London: HMSO.

MLA (9th ed.) Citation

Great Britain. Drinking Water Inspectorate, et al. Drinking Water. HMSO.

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