Gołdyn, Piotr. „Press Information on Activities of Ministers of Education of Bulgaria, Sweden and Hungary Visiting Poland in 1935”. Biuletyn Historii Wychowania, no. 38 (listopad 7, 2018): 241–263. Udostępniono lipiec 22, 2024. https://pressto.amu.edu.pl/index.php/bhw/article/view/20156.