Não informado. (1948). Report and Short Papers. Institute of Freshwater Research.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Report and Short Papers. Drottningholm, Suecia: Institute of Freshwater Research, 1948.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Report and Short Papers. Institute of Freshwater Research, 1948.
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