APA (7th ed.) Citation

Great Britain. Central Office of Information. Reference Services. (1991). Parliament. HMSO.

Chicago Style (17th ed.) Citation

Great Britain. Central Office of Information. Reference Services. Parliament. London: HMSO, 1991.

MLA (9th ed.) Citation

Great Britain. Central Office of Information. Reference Services. Parliament. HMSO, 1991.

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