Empire Mining and Metallurgical Congress & Empire Council of Mining and Metallurgical Institutions. Proceedings - Empire Mining and Metallurgical Congress. Empire Mining and Metallurgical Congress.
Չիկագոյի ոճի (17րդ խմբ.) մեջբերումEmpire 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 (8րդ խմբ.) ՄեջբերումEmpire Mining and Metallurgical Congress and Empire Council of Mining and Metallurgical Institutions. Proceedings - Empire Mining and Metallurgical Congress. Empire Mining and Metallurgical Congress.
Զգուշացում. այս մեջբերումները միշտ չէ, որ կարող են 100% ճշգրիտ լինել.