British Standards Institution. (1973). Specification for draw-off taps and stopvalves for water services (screw-down pattern). British Standards Institution.
Chicago Style (17th ed.) CitationBritish Standards Institution. Specification for Draw-off Taps and Stopvalves for Water Services (screw-down Pattern). London: British Standards Institution, 1973.
ציטוט MLABritish Standards Institution. Specification for Draw-off Taps and Stopvalves for Water Services (screw-down Pattern). British Standards Institution, 1973.
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