Não informado. (1969). Bcira abstracts of international foundry literature. British Cast Iron Research Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Bcira Abstracts of International Foundry Literature. Birmingham, Inglaterra: British Cast Iron Research Association, 1969.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Bcira Abstracts of International Foundry Literature. British Cast Iron Research Association, 1969.
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