Lichtenberg, R. M. (1959). The role of middleman transactions in world trade. National Bureau of Economic Research.
芝加哥风格引文Lichtenberg, Robert M. The Role of Middleman Transactions in World Trade. [New York]: National Bureau of Economic Research, 1959.
MLA引文Lichtenberg, Robert M. The Role of Middleman Transactions in World Trade. National Bureau of Economic Research, 1959.
警告：这些引文格式不一定是100％准确.