Kallhoff, A. (2011). Why democracy needs public goods. Lexington Books.
芝加哥风格引文Kallhoff, Angela. Why Democracy Needs Public Goods. Lanham, Md.: Lexington Books, 2011.
MLA引文Kallhoff, Angela. Why Democracy Needs Public Goods. Lexington Books, 2011.
警告：这些引文格式不一定是100％准确.