Nielsen, Niels. “Daniel Bruun: Island. GefiS Ut A5 Tilhlutun Ferdafélags Islands. Gyldendal 1939= Pris Kr. 2,50”. Geografisk Tidsskrift - Danish Journal of Geography 42 (January 1, 1939). Accessed December 5, 2025. https://tidsskrift.dk/geografisktidsskrift/article/view/48245.