Commonwealth Mining and Metallurgical Congress, 6th , Canada, 1957, & Empire Mining and Metallurgical Congress. Proceedings. (1924). Proceedings: Sixth Commonwealth Mining and Metallurgical Congress. s.n.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCommonwealth Mining and Metallurgical Congress, 6th , Canada, 1957, और Empire Mining and Metallurgical Congress. Proceedings. Proceedings: Sixth Commonwealth Mining and Metallurgical Congress. London: s.n, 1924.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCommonwealth Mining and Metallurgical Congress, 6th , Canada, 1957, और Empire Mining and Metallurgical Congress. Proceedings. Proceedings: Sixth Commonwealth Mining and Metallurgical Congress. s.n, 1924.
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