Não informado. (1978). Finnish marine research. Institute of Marine Research.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Finnish Marine Research. Helsinki: Institute of Marine Research, 1978.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Finnish Marine Research. Institute of Marine Research, 1978.
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