Não informado. (1928). Cement and Cement Manufacture. Concrete Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Cement and Cement Manufacture. London: Concrete Publications, 1928.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Cement and Cement Manufacture. Concrete Publications, 1928.
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