Tomczyk, Ł. (2015). Ctibor Hatar: „Geragogika : vybrané kapitoly z teórie a metodiky edukácie seniorov”, Univerzita Konštantína Filozofa, Nitra 2014. Exlibris Social Gerontology Journal, 9(1), 149–150. Retrieved from https://ojs.wsb.edu.pl/index.php/bgs/article/view/683