ebrary, Inc, & Drew, K. F. (1973). The Lombard laws. University of Pennsylvania Press.
芝加哥风格引文ebrary, Inc, 与 Katherine Fischer Drew. The Lombard Laws. Philadelphia [Pa.]: University of Pennsylvania Press, 1973.
MLA引文ebrary, Inc, 与 Katherine Fischer Drew. The Lombard Laws. University of Pennsylvania Press, 1973.
警告：这些引文格式不一定是100％准确.