Great Britain. Scottish Office & Great Britain. Welsh Office. (1991). Processes prescribed for air pollution control by local authorities : Secretary of State's guidance: Secretary of State's guidance. HMSO.
Chicago Style (17th ed.) CitationGreat Britain. Scottish Office and Great Britain. Welsh Office. Processes Prescribed for Air Pollution Control by Local Authorities : Secretary of State's Guidance: Secretary of State's Guidance. London: HMSO, 1991.
MLA (9th ed.) CitationGreat Britain. Scottish Office and Great Britain. Welsh Office. Processes Prescribed for Air Pollution Control by Local Authorities : Secretary of State's Guidance: Secretary of State's Guidance. HMSO, 1991.
Warning: These citations may not always be 100% accurate.