1.
Arne Hansen E. Stephen B. Wood : Constitutional Politics in the Progressive Era. Child Labor and the Law. Chicago and London, University of Chicago Press, 1968. xvi, 320 s. 90 sh. ht [Internet]. 1. januar 1973 [henvist 6. maj 2024];12. Tilgængelig hos: https://tidsskrift.dk/historisktidsskrift/article/view/51459