Youngs, R. (2014). The uncertain legacy of crisis: European foreign policy faces the future. Carnegie Endowment for International Peace.
芝加哥风格引文Youngs, Richard. The Uncertain Legacy of Crisis: European Foreign Policy Faces the Future. Washington, District of Columbia: Carnegie Endowment for International Peace, 2014.
MLA引文Youngs, Richard. The Uncertain Legacy of Crisis: European Foreign Policy Faces the Future. Carnegie Endowment for International Peace, 2014.
警告：这些引文格式不一定是100％准确.