Black C. Compte rendu de la conférence internationale du chdmage. 1911. Marcel Riviére & Co„ Paris. 3 Bind. Pris 18 frcs. nt [Internet]. 1912 Jan. 1 [cited 2024 May 19];3. Available from: https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/59105