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.
Chicago-referens (17:e uppl.)Institution of Mining and Metallurgy (Great Britain) och 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.
MLA-referens (8:e uppl.)Institution of Mining and Metallurgy (Great Britain) och 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.