APA استشهاد

Heywood, A. (2005). Key concepts in politics. Palgrave Macmillan.

استشهاد بنمط شيكاغو

Heywood, Andrew. Key Concepts in Politics. New York: Palgrave Macmillan, 2005.

MLA استشهاد

Heywood, Andrew. Key Concepts in Politics. Palgrave Macmillan, 2005.