POCIECHA, Józef. Statistics of Poland – the First Yearbook of Polish Lands: Authors and Content. Acta Universitatis Lodziensis. Folia Oeconomica, [S. l.], v. 5, n. 338, p. 229–245, 2018. DOI: 10.18778/0208-6018.338.14. Disponível em: https://czasopisma.uni.lodz.pl/foe/article/view/1009. Acesso em: 15 jan. 2025.