GANGAS GEISSE, M. . The traces of Friedrich Ratzel’s geographic-political of Friedrich Ratzel in Chilean education. Revista de Geografía Norte Grande, [S. l.], n. 25, p. 129–134, 2021. Disponível em: https://ojs.uc.cl/index.php/RGNG/article/view/42297. Acesso em: 17 may. 2024.