Não informado. (1999). Geology of greenland survey bulletin. Geological Survey of Denmark and Greenland.
Chicago-referens (17:e uppl.)Não informado. Geology of Greenland Survey Bulletin. Copenhagen: Geological Survey of Denmark and Greenland, 1999.
MLA-referens (8:e uppl.)Não informado. Geology of Greenland Survey Bulletin. Geological Survey of Denmark and Greenland, 1999.
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