Não informado. (1968). Chem 13 News. University of Waterloo, Department of Chemistry.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Chem 13 News. Waterloo, Canada: University of Waterloo, Department of Chemistry, 1968.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Chem 13 News. University of Waterloo, Department of Chemistry, 1968.
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