Institution of Mining and Metallurgy (Great Britain) & Jones, M. J. (1977). Advances in extractive metallurgy, 1977: An international symposium organized by the Institution of Mining and Metallurgy and held in London from 18 to 20 April, 1977. The Institution.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Institution of Mining and Metallurgy (Great Britain) و Michael John Jones. Advances in Extractive Metallurgy, 1977: An International Symposium Organized by the Institution of Mining and Metallurgy and Held in London from 18 to 20 April, 1977. London: The Institution, 1977.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Institution of Mining and Metallurgy (Great Britain) و Michael John Jones. Advances in Extractive Metallurgy, 1977: An International Symposium Organized by the Institution of Mining and Metallurgy and Held in London from 18 to 20 April, 1977. The Institution, 1977.