Puch, Elżbieta Alicja, translator. “Biological Dynamics of Polish Rural Communites from Various Eco-Cultural Systems in the 18th and 19th Centuries ”. Anthropological Review, vol. 56, no. 1-2, Dec. 1993, pp. 5-35, https://doi.org/10.18778/1898-6773.56.1-2.02.