CROMWELL, Valery. Parliament and Opinion since 1832 . Czasopismo Prawno-Historyczne, [S. l.], v. 41, n. 1, p. 71–86, 1989. DOI: 10.14746/cph.1989.41.1.6. Disponível em: https://pressto.amu.edu.pl/index.php/cph/article/view/48269. Acesso em: 10 grudz. 2025.