Não informado. Swiss technics. Swiss Association of Machinery Manufacturers, Swiss Office for the Development of Trade.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Swiss Technics. Lausanne, Suíça: Swiss Association of Machinery Manufacturers, Swiss Office for the Development of Trade.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Swiss Technics. Swiss Association of Machinery Manufacturers, Swiss Office for the Development of Trade.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.