Não informado. (1932). Oil & Soap. American Oil Chemists Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Oil & Soap. Chicago, Ill: American Oil Chemists Society, 1932.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Oil & Soap. American Oil Chemists Society, 1932.
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