APA (7th ed.) Citation

SPL International. (1975). Choosing the programming language. H.M.S.O..

Chicago Style (17th ed.) Citation

SPL International. Choosing the Programming Language. London: H.M.S.O., 1975.

MLA (8th ed.) Citation

SPL International. Choosing the Programming Language. H.M.S.O., 1975.

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