Abulafia, D. (2004). Italy in the central Middle Ages: 1000-1300. Oxford University Press.
芝加哥风格引文Abulafia, David. Italy in the Central Middle Ages: 1000-1300. Oxford ; New York: Oxford University Press, 2004.
MLA引文Abulafia, David. Italy in the Central Middle Ages: 1000-1300. Oxford University Press, 2004.
警告：这些引文格式不一定是100％准确.