Strayer, J. R. (1974). Western Europe in the middle ages: A short history (2nd. ed.). Goodyear Publishing Company.
芝加哥风格引文Strayer, Joseph R. Western Europe in the Middle Ages: A Short History. 2nd. ed. California: Goodyear Publishing Company, 1974.
MLA引文Strayer, Joseph R. Western Europe in the Middle Ages: A Short History. 2nd. ed. Goodyear Publishing Company, 1974.
警告：这些引文格式不一定是100％准确.