REDAKTIONEN, .-. The Quarterly Journal of Economics. Published for Harward University. Boston, Geo. H. Ellis. No.s 1 &2. Oct. 1886. Jan. 1887. Nationaløkonomisk Tidsskrift, [S. l.], v. 5, 1887. Disponível em: https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/65282. Acesso em: 14 maj. 2024.