Redaktionen, .-. (1886) “Political Science Quarterly. Edited by the Faculty of Political Science of Columbia College. Vol. I. Number 1, 2, 3. March, June, September 1886. Boston, Ginn and Co”., Nationaløkonomisk Tidsskrift, 4. Tilgængelig hos: https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/65231 (Set: 3 marts 2026).