May, W. F. (2011). Testing the national covenant: Fears and appetites in American politics. Georgetown University Press.
芝加哥风格引文May, William F. Testing the National Covenant: Fears and Appetites in American Politics. Washington, D.C.: Georgetown University Press, 2011.
MLA引文May, William F. Testing the National Covenant: Fears and Appetites in American Politics. Georgetown University Press, 2011.
警告：这些引文格式不一定是100％准确.