Downs, B. W. (1926). Cambridge past and present. Methuen & Co..
芝加哥风格引文Downs, Brian Westerdale. Cambridge Past and Present. London: Methuen & Co., 1926.
MLA引文Downs, Brian Westerdale. Cambridge Past and Present. Methuen & Co., 1926.
警告：这些引文格式不一定是100％准确.