Meade, J. E. (1952). A geometry of international trade. Allen & Unwin.
芝加哥风格引文Meade, J. E. A Geometry of International Trade. London: Allen & Unwin, 1952.
MLA引文Meade, J. E. A Geometry of International Trade. Allen & Unwin, 1952.
警告：这些引文格式不一定是100％准确.