APA (7th ed.) Citation

Great Britain. Officefor National Statistics & Great Britain. Office for National Statistics. Classifications Unit. (1993). Indexes to the Standard industrial classification of economic activities / Officefor National Statistics. H.M.S.O..

Chicago Style (17th ed.) Citation

Great Britain. Officefor National Statistics and Great Britain. Office for National Statistics. Classifications Unit. Indexes to the Standard Industrial Classification of Economic Activities / Officefor National Statistics. London: H.M.S.O., 1993.

MLA (9th ed.) Citation

Great Britain. Officefor National Statistics and Great Britain. Office for National Statistics. Classifications Unit. Indexes to the Standard Industrial Classification of Economic Activities / Officefor National Statistics. H.M.S.O., 1993.

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