Cita APA (7th ed.)

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.