Não informado. (2001). Scientific results. Norwegian North Polar Expedition With the Maud.
Chicago-referens (17:e uppl.)Não informado. Scientific Results. Bergen, Noruega: Norwegian North Polar Expedition With the Maud, 2001.
MLA-referens (8:e uppl.)Não informado. Scientific Results. Norwegian North Polar Expedition With the Maud, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.