APA (7th ed.) Citation

British Standards Institution. (1973). Specification for draw-off taps and stopvalves for water services (screw-down pattern). British Standards Institution.

Chicago Style (17th ed.) Citation

British Standards Institution. Specification for Draw-off Taps and Stopvalves for Water Services (screw-down Pattern). London: British Standards Institution, 1973.

MLA (8th ed.) Citation

British Standards Institution. Specification for Draw-off Taps and Stopvalves for Water Services (screw-down Pattern). British Standards Institution, 1973.