Heidar, K., & Koole, R. (2000). Parliamentary party groups in European democracies: Political parties behind closed doors. Routledge.
Citação do estilo Chicago (17ª ed.)Heidar, Knut, e R.A Koole. Parliamentary Party Groups in European Democracies: Political Parties Behind Closed Doors. London: Routledge, 2000.
Citação MLA (9ª ed.)Heidar, Knut, e R.A Koole. Parliamentary Party Groups in European Democracies: Political Parties Behind Closed Doors. Routledge, 2000.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.