Ullmann, W., & Garnett, G. (1988). Law and jurisdiction in the Middle Ages Variorum collected studies series.
芝加哥风格引文Ullmann, Walter, 与 George Garnett. "Law and Jurisdiction in the Middle Ages." Variorum Collected Studies Series 1988.
MLA引文Ullmann, Walter, 与 George Garnett. "Law and Jurisdiction in the Middle Ages." Variorum Collected Studies Series, 1988.
警告：这些引文格式不一定是100％准确.