Não informado. (1956). British chemical engineering. Engineering, Chemical and Marine Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. British Chemical Engineering. London: Engineering, Chemical and Marine Press, 1956.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. British Chemical Engineering. Engineering, Chemical and Marine Press, 1956.
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