Não informado. (2001). Scientific results. Norwegian North Polar Expedition With the Maud.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Scientific Results. Bergen, Noruega: Norwegian North Polar Expedition With the Maud, 2001.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Scientific Results. Norwegian North Polar Expedition With the Maud, 2001.
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