(1974). Guillaume d'Orange four twelfth - century epics. Columbia university.
芝加哥风格引文Guillaume D'Orange Four Twelfth - Century Epics. New York: Columbia university, 1974.
MLA引文Guillaume D'Orange Four Twelfth - Century Epics. Columbia university, 1974.
警告：这些引文格式不一定是100％准确.