Empire Mining and Metallurgical Congress & Empire Council of Mining and Metallurgical Institutions. Proceedings - Empire Mining and Metallurgical Congress. Empire Mining and Metallurgical Congress.
Chicago Style (17th ed.) CitationEmpire Mining and Metallurgical Congress and Empire Council of Mining and Metallurgical Institutions. Proceedings - Empire Mining and Metallurgical Congress. [s.l.]: Empire Mining and Metallurgical Congress.
MLA引文Empire Mining and Metallurgical Congress and Empire Council of Mining and Metallurgical Institutions. Proceedings - Empire Mining and Metallurgical Congress. Empire Mining and Metallurgical Congress.
警告：這些引文格式不一定是100％准確.