V. BIRCK, Laurits. W. Liebknecht. Zur Geschichte der Werttheorie in England. 1902. Gustav Fischers Verlag. (112 S.). Nationaløkonomisk Tidsskrift, [S. l.], v. 3, 1902. Disponível em: https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/58271. Acesso em: 5 dec. 2025.