Burton, S. J. (2006). Principles of contract law. St. Paul, Minn: Thomson/West.
Trích dẫn kiểu ChicagoBurton, Steven J. Principles of Contract Law. St. Paul, Minn: Thomson/West, 2006.
MLA引文Burton, Steven J. Principles of Contract Law. St. Paul, Minn: Thomson/West, 2006.
警告：这些引文格式不一定是100％准确.