Não informado. (1948). Metal Treatment and Drop Forging. Fuel and Metallurgical Journals.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Metal Treatment and Drop Forging. London: Fuel and Metallurgical Journals, 1948.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Metal Treatment and Drop Forging. Fuel and Metallurgical Journals, 1948.
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