H.M.L. Geurts, Herman Derk Louwes (1893-1960). Burgemeester van de Nederlandse landbouw. BMGN - Low Countries Historical Review, [S. l.], v. 118, n. 2, p. 257–259, 2003. DOI: 10.18352/bmgn-lchr.5861. Disponível em: https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-106729.. Acesso em: 2 jul. 2024.