P.-St, A. “J. B. Clark, the Philosophy of Wealth. Economic Principles Newly Formulated. Boston, Ginn & Co. 1886. (235 S.) (Doll. 1,10)”. Nationaløkonomisk Tidsskrift 5 (januar 1, 1887). Set december 5, 2025. https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/65307.