Wickham, C. (2006). Framing the early Middle Ages: Europe and the Mediterranean, 400-800. Oxford University Press.
芝加哥风格引文Wickham, Chris. Framing the Early Middle Ages: Europe and the Mediterranean, 400-800. Oxford: Oxford University Press, 2006.
MLA引文Wickham, Chris. Framing the Early Middle Ages: Europe and the Mediterranean, 400-800. Oxford University Press, 2006.
警告：这些引文格式不一定是100％准确.