Não informado. (1948). Journal of the Society of Leather Trades Chemists. Society of Leather Trades Chemists.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the Society of Leather Trades Chemists. Redbourne, Inglaterra: Society of Leather Trades Chemists, 1948.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Journal of the Society of Leather Trades Chemists. Society of Leather Trades Chemists, 1948.
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