League of Nations. Sercretariat. Financial Section and Economic Intelligence Service. (1941). Europe's trade: A study of the trade of European countries with each other and with the rest of the world. League of Nations.
芝加哥风格引文League of Nations. Sercretariat. Financial Section and Economic Intelligence Service. Europe's Trade: A Study of the Trade of European Countries with Each Other and with the Rest of the World. Geneva: League of Nations, 1941.
MLA引文League of Nations. Sercretariat. Financial Section and Economic Intelligence Service. Europe's Trade: A Study of the Trade of European Countries with Each Other and with the Rest of the World. League of Nations, 1941.
警告：这些引文格式不一定是100％准确.