REDAKTIONEN, .-. W. F. Willoughby: State Activities in Relation to Labor in the United States. Baltimore, The Johns Hopkins Press. April -May 1901. Nationaløkonomisk Tidsskrift, [S. l.], v. 3, 1901. Disponível em: https://tidsskrift.dk/nationaloekonomisktidsskrift/article/view/58188. Acesso em: 11 aug. 2024.