Heywood Andrew. Political Ideologies: An Introduction (5th.). Palgrave Macmillan.
Cita Chicago (17th ed.)Heywood Andrew. Political Ideologies: An Introduction. 5th. New York New York: Palgrave Macmillan.
Cita MLA (9th ed.)Heywood Andrew. Political Ideologies: An Introduction. 5th. Palgrave Macmillan.
Atenció: Aquestes cites poden no estar 100% correctes.