Berkhofer, R. F. (2004). Day of reckoning: Power and accountability in medieval France. University of Pennsylvania Press.
芝加哥风格引文Berkhofer, Robert F. Day of Reckoning: Power and Accountability in Medieval France. Philadelphia, Pa.: University of Pennsylvania Press, 2004.
MLA引文Berkhofer, Robert F. Day of Reckoning: Power and Accountability in Medieval France. University of Pennsylvania Press, 2004.
警告：这些引文格式不一定是100％准确.