BOSMANS, J. J. Gaemers, De rode wethouder. Willem Drees 1886-1988. De jaren 1886-1940. BMGN - Low Countries Historical Review, [S. l.], v. 122, n. 4, p. 606–608, 2007. DOI: 10.18352/bmgn-lchr.6681. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-107597. Acesso em: 28 mar. 2024.