Book review: Contingent Citizenship. The Law and Practice of Citizenship Deprivation in International, European and National Perspectives, by Sandra Mantu. (Leiden: Brill Academic Publishers, 2 - Common Market Law Review View Book review: Contingent Citizenship. The Law and Practice of Citizenship Deprivation in International, European and National Perspectives, by Sandra Mantu. (Leiden: Brill Academic Publishers, 2 by - Common Market Law Review Book review: Contingent Citizenship. The Law and Practice of Citizenship Deprivation in International, European and National Perspectives, by Sandra Mantu. (Leiden: Brill Academic Publishers, 2 55 6 Common Market Law Review