MADSEN, E. E. J. Chambers. Canadas fertile Northland, Ottawa 1907. — Government printing office. Geografisk Tidsskrift - Danish Journal of Geography, [S. l.], v. 20, 1910. Disponível em: https://tidsskrift.dk/geografisktidsskrift/article/view/49531. Acesso em: 29 may. 2024.