Cooper, D. Y., III, & Ledger, M. A. (1990). Innovation and tradition at the University of Pennsylvania School of Medicine: An anecdotal journey. University of Pennsylvania Press.
芝加哥风格引文Cooper, David Y., III, 与 Marshall A. Ledger. Innovation and Tradition at the University of Pennsylvania School of Medicine: An Anecdotal Journey. Philadelphia: University of Pennsylvania Press, 1990.
MLA引文Cooper, David Y., III, 与 Marshall A. Ledger. Innovation and Tradition at the University of Pennsylvania School of Medicine: An Anecdotal Journey. University of Pennsylvania Press, 1990.
警告：这些引文格式不一定是100％准确.