ebrary, Inc, & Friedman, J. (2011). What caused the financial crisis. University of Pennsylvania Press.
芝加哥风格引文ebrary, Inc, 与 Jeffrey Friedman. What Caused the Financial Crisis. Philadelphia: University of Pennsylvania Press, 2011.
MLA引文ebrary, Inc, 与 Jeffrey Friedman. What Caused the Financial Crisis. University of Pennsylvania Press, 2011.
警告：这些引文格式不一定是100％准确.