APA引文

Institution of Mining and Metallurgy, Gesellschaft Deutscher Metallhutten - und Bergleute, Societe francaise de metallurgie, & Benelux metallurgie. (1981). Extraction metallurgy '81: Papers presented at a symposium. The Institution.

Chicago Style (17th ed.) Citation

Institution of Mining and Metallurgy, Gesellschaft Deutscher Metallhutten - und Bergleute, Societe francaise de metallurgie, and Benelux metallurgie. Extraction Metallurgy '81: Papers Presented at a Symposium. London: The Institution, 1981.

MLA引文

Institution of Mining and Metallurgy, et al. Extraction Metallurgy '81: Papers Presented at a Symposium. The Institution, 1981.