Böcher, T. W. (1938). Biological distributional types in the flora of Greenland: A study of the flora and plant-geography of south Greenland and Eastgreenland between Cape Farewell and Scoresby Sound. C. A. Reitzels Forlag.
Chicago-viite (17. p.)Böcher, Tyge Wittrock. Biological Distributional Types in the Flora of Greenland: A Study of the Flora and Plant-geography of South Greenland and Eastgreenland Between Cape Farewell and Scoresby Sound. København: C. A. Reitzels Forlag, 1938.
MLA-viite (8. p.)Böcher, Tyge Wittrock. Biological Distributional Types in the Flora of Greenland: A Study of the Flora and Plant-geography of South Greenland and Eastgreenland Between Cape Farewell and Scoresby Sound. C. A. Reitzels Forlag, 1938.
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