Perkins, M. (2017). Voltaire's concept of international order. Voltaire Foundation.
芝加哥风格引文Perkins, M. Voltaire's Concept of International Order. Voltaire Foundation, 2017.
MLA引文Perkins, M. Voltaire's Concept of International Order. Voltaire Foundation, 2017.
警告：这些引文格式不一定是100％准确.