Nuffield Foundation & Scottish Education Department. (1973). Metals stages 1 and 2: A unit for teachers. Published for the Schools Council by MacDonald Educational.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nuffield Foundation و Scottish Education Department. Metals Stages 1 and 2: A Unit for Teachers. London: Published for the Schools Council by MacDonald Educational, 1973.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Nuffield Foundation و Scottish Education Department. Metals Stages 1 and 2: A Unit for Teachers. Published for the Schools Council by MacDonald Educational, 1973.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.