Não informado. (1908). Proceedings of the Mining and Metallurgical Society of America. Office of the Secretary Mining and Metallurgical Society of America.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Proceedings of the Mining and Metallurgical Society of America. New York: Office of the Secretary Mining and Metallurgical Society of America, 1908.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Proceedings of the Mining and Metallurgical Society of America. Office of the Secretary Mining and Metallurgical Society of America, 1908.
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