Marian Weralski, Polskie prawo finansowe [Polish Financial Law], Warszawa 1964, PWN. Contemporary Central & East European Law, [S. l.], n. 6, p. 52–53, 1966. Disponível em: https://czasopisma.inp.pan.pl/index.php/cceel/article/view/1731. Acesso em: 6 oct. 2025.