PIOTROWICZ, D. Epidemia cholery w guberni płockiej w 1894 r. Studia Mazowieckie, [S. l.], v. 17, n. 2, p. 69–85, 2022. DOI: 10.54539/sm.37. Disponível em: https://studiamazowieckie.puzim.edu.pl/index.php/sm/article/view/37. Acesso em: 6 grudz. 2024.