KOŁODZIEJCZAK, Anna; KOSSOWSKI, Tomasz. Diversification of Farming Systems in Poland in the Years 2006-2009. Quaestiones Geographicae, [S. l.], v. 30, n. 2, p. 49–56, 2011. DOI: 10.2478/v10117-011-0017-x. Disponível em: https://pressto.amu.edu.pl/index.php/qg/article/view/v10117-011-0017-x. Acesso em: 5 may. 2024.