APA (7th ed.) Zitazioa

Heywood, A. (2017). Political Ideologies: An introduction . (6th ed.). Palgrave.

Chicago Style (17th ed.) Zitazioa

Heywood, Andrew. Political Ideologies: An Introduction . 6th ed. London: Palgrave, 2017.

MLA (9th ed.) Zitazioa

Heywood, Andrew. Political Ideologies: An Introduction . 6th ed. Palgrave, 2017.