APA استشهاد

Heywood, A. (2007). Political ideologies (4th.). Palgrave Macmillan.

استشهاد بنمط شيكاغو

Heywood, Andrew. Political Ideologies. 4th. New York: Palgrave Macmillan, 2007.

MLA استشهاد

Heywood, Andrew. Political Ideologies. 4th. Palgrave Macmillan, 2007.