Empire Mining and Metallurgical Congress & Empire Council of Mining and Metallurgical Institutions. Proceedings - Empire Mining and Metallurgical Congress. Empire Mining and Metallurgical Congress.
Lua i Stíl Chicago (17ú heag.)Empire Mining and Metallurgical Congress agus Empire Council of Mining and Metallurgical Institutions. Proceedings - Empire Mining and Metallurgical Congress. [s.l.]: Empire Mining and Metallurgical Congress.
Lua MLA (8ú heag.)Empire Mining and Metallurgical Congress agus Empire Council of Mining and Metallurgical Institutions. Proceedings - Empire Mining and Metallurgical Congress. Empire Mining and Metallurgical Congress.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.