Não informado. (1955). Welding research abroad. Welding Research Council, Engineering Foundation.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Welding Research Abroad. New York: Welding Research Council, Engineering Foundation, 1955.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Welding Research Abroad. Welding Research Council, Engineering Foundation, 1955.
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