Maddison, A. (1989). The world economy in the 20th century. Paris: Development Centre of the Organisation for Economic Co-operation and Development.
Trích dẫn kiểu ChicagoMaddison, Angus. The World Economy in the 20th Century. Paris: Development Centre of the Organisation for Economic Co-operation and Development, 1989.
MLA引文Maddison, Angus. The World Economy in the 20th Century. Paris: Development Centre of the Organisation for Economic Co-operation and Development, 1989.
警告：這些引文格式不一定是100％准確.