Não informado. (1982). Chemical Engineering Abstracts. Royal Society of Chemistry.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Chemical Engineering Abstracts. Cambridge, Inglaterra: Royal Society of Chemistry, 1982.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Chemical Engineering Abstracts. Royal Society of Chemistry, 1982.
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