Heywood, A. (2016). Key Concepts in Politics and International Relations (2nd.). Palgrave.
芝加哥风格引文Heywood, Andrew. Key Concepts in Politics and International Relations. 2nd. London: Palgrave, 2016.
MLA引文Heywood, Andrew. Key Concepts in Politics and International Relations. 2nd. Palgrave, 2016.
警告：这些引文格式不一定是100％准确.