PTASIEWICZ, Z. Aleksander Kociszewski - historyk, regionalista, działacz kultury. Studia Mazowieckie, [S. l.], v. 17, n. 1, p. 11–33, 2022. DOI: 10.54539/sm.21. Disponível em: https://studiamazowieckie.puzim.edu.pl/index.php/sm/article/view/21. Acesso em: 28 grudz. 2024.