“J.W. Brouwer, J.J.M. Ramakers (eds.), Regeren Zonder Rood. Het Kabinet De Quay, 1959-1963”. BMGN - Low Countries Historical Review 124, no. 2 (January 1, 2009): 306–308. Accessed September 17, 2024. https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-108011.