Act of 25th february, 1964 on the issue of legal regulations by the People’s Councils: Dz.U. Nr 8, poz 47. CC&EEL [Internet]. 1965 Dec. 31 [cited 2025 Oct. 6];(5):66-8. Available from: https://czasopisma.inp.pan.pl/index.php/cceel/article/view/1727