Olufsen O. The Teaching- of Geography in Elementary Schools by Richard Elwood Dodge and Clara, Barbara Kirehwey. Me. Nally and Co. Chicago, New- York 1913. gt [Internet]. 1. januar 1914 [henvist 2. maj 2024];22. Tilgængelig hos: https://tidsskrift.dk/geografisktidsskrift/article/view/46859