Keohane, R. O. The globalization of informal violence, theories of world politics, and "the liberalism of fear": Robert O. Keohane. Understanding September 11.(2002).
Chicago-Zitierstil (17. Ausg.)Keohane, Robert O. "The Globalization of Informal Violence, Theories of World Politics, and "the Liberalism of Fear": Robert O. Keohane." Understanding September 11.(2002) .
MLA-Zitierstil (8. Ausg.)Keohane, Robert O. "The Globalization of Informal Violence, Theories of World Politics, and "the Liberalism of Fear": Robert O. Keohane." Understanding September 11.(2002), .
警告：这些引文格式不一定是100％准确.