PIETRZAK, Bogusław. Book review - Free Banking Monetary Systems. Concepts, Characteristics, Application. Economics and Business Review, Poland, v. 1, n. 2, p. 149–150, 2015. DOI: 10.18559/ebr.2015.2.8. Disponível em: https://journals.ue.poznan.pl/ebr/article/view/213. Acesso em: 4 apr. 2025.