Engineering Industry Training Board. (1968). Milling: For Engineering Craftsmen. Engineering Industry Training Board.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Engineering Industry Training Board. Milling: For Engineering Craftsmen. Watford, Herts.: Engineering Industry Training Board, 1968.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Engineering Industry Training Board. Milling: For Engineering Craftsmen. Engineering Industry Training Board, 1968.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.