Não informado. (2009). Foundry Trade Journal International. Institute of Cast Metals Engineers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Foundry Trade Journal International. West Bromwich, Inglaterra: Institute of Cast Metals Engineers, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Foundry Trade Journal International. Institute of Cast Metals Engineers, 2009.
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