APA (7th ed.) Citation

Great Britain. Office of Population Censuses and Surveys. Census 1981.

Chicago Style (17th ed.) Citation

Great Britain. Office of Population Censuses and Surveys. Census 1981. London.

MLA (8th ed.) Citation

Great Britain. Office of Population Censuses and Surveys. Census 1981.

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