Symposium on Extraction Metallurgy London, England, Institution of Mining and Metallurgy (Great Britain), & Gray, P. M. J. (1981). Extraction metallurgy 81. Institution of Mining and Metallurgy.
Chicago Style (17th ed.) CitationSymposium on Extraction Metallurgy London, England, Institution of Mining and Metallurgy (Great Britain), and Phillip M. J. Gray. Extraction Metallurgy 81. [London]: Institution of Mining and Metallurgy, 1981.
MLA (9th ed.) CitationSymposium on Extraction Metallurgy London, England, et al. Extraction Metallurgy 81. Institution of Mining and Metallurgy, 1981.
Warning: These citations may not always be 100% accurate.