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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)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.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)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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