V. Birck, L. (1902) “Prince Krapotkin. Fields, Factories and Workshops, or Industry combined with agriculture and brain work with. mani.al Avork. London 1901. Sonnenschein & Co. (259 S.)”., Nationaløkonomisk Tidsskrift, 3. Tilgængelig hos: https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/58275 (Set: 5 december 2025).