PÓŁTURZYCKI, J. Rok 2015. Rocznik Andragogiczny, [S. l.], v. 22, p. 485–492, 2016. DOI: 10.12775/RA.2015.038. Disponível em: https://apcz.umk.pl/RA/article/view/RA.2015.038. Acesso em: 18 lip. 2024.