Leszczyńska, Cecylia. “Polish Population Censuses in the 19th and 20th Centuries: Scope and Subject Matter in the Context of International Standards”. Studia Historiae Oeconomicae 40, no. 1 (December 8, 2022): 1–28. Accessed November 21, 2024. https://pressto.amu.edu.pl/index.php/sho/article/view/36999.