British Standards Institution. (1971). Specification for capillary and compression tube fittings of copper and copper alloy. British Standards Institution.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)British Standards Institution. Specification for Capillary and Compression Tube Fittings of Copper and Copper Alloy. London: British Standards Institution, 1971.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)British Standards Institution. Specification for Capillary and Compression Tube Fittings of Copper and Copper Alloy. British Standards Institution, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.