Tierney, B. (1999). The middle ages: Sources of medieval history. McGraw - Hill.
芝加哥风格引文Tierney, Brian. The Middle Ages: Sources of Medieval History. New York: McGraw - Hill, 1999.
MLA引文Tierney, Brian. The Middle Ages: Sources of Medieval History. McGraw - Hill, 1999.
警告：这些引文格式不一定是100％准确.