BLACK, C. I. G. GIBBON. Medical Benefit in Germany and Denmark. P. S. King & Son, London. 1912. 6 sh. Nationaløkonomisk Tidsskrift, [S. l.], v. 3, 1913. Disponível em: https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/59187. Acesso em: 12 aug. 2024.