Não informado. (2008). Publications in Botany from the University of Helsinki. University of Helsinki.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Publications in Botany from the University of Helsinki. Helsinki: University of Helsinki, 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Publications in Botany from the University of Helsinki. University of Helsinki, 2008.
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