Jonge, A.A. de. “Geschiedschrijving over De Nederlandse Politieke Partijen”. BMGN - Low Countries Historical Review 91, no. 1 (January 1, 1976): 94–105. Accessed April 26, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-102080.