Não informado. (1965). Copper and techniques. Japan Copper Development Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Copper and Techniques. Tokyo: Japan Copper Development Association, 1965.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Copper and Techniques. Japan Copper Development Association, 1965.
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