International Conference "Clean Rooms" Institution of Mechanical Engineers & Institution of Mechanical Engineers (Great Britain). Power Industries Division. (1988). International Conference "Clean rooms": 9-10 November, 1988, the Institution of Mechanical Engineers, Birdcage Walk, London. Published for the Institution of Mechanical Engineers by Mechanical Engineering Publications.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Conference "Clean Rooms" Institution of Mechanical Engineers و Institution of Mechanical Engineers (Great Britain). Power Industries Division. International Conference "Clean Rooms": 9-10 November, 1988, the Institution of Mechanical Engineers, Birdcage Walk, London. Bury St. Edmunds, Suffolk: Published for the Institution of Mechanical Engineers by Mechanical Engineering Publications, 1988.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)International Conference "Clean Rooms" Institution of Mechanical Engineers و Institution of Mechanical Engineers (Great Britain). Power Industries Division. International Conference "Clean Rooms": 9-10 November, 1988, the Institution of Mechanical Engineers, Birdcage Walk, London. Published for the Institution of Mechanical Engineers by Mechanical Engineering Publications, 1988.