KAPPELHOF, A.C.M. C. van Eijl, L. Heerma van Voss, P. de Rooy, Sociaal Nederland. Contouren van de twintigste eeuw. BMGN - Low Countries Historical Review, [S. l.], v. 117, n. 3, p. 436–437, 2002. DOI: 10.18352/bmgn-lchr.5756. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-106605.. Acesso em: 21 nov. 2024.