Sweetser, A. (1920). The League of Nations at work. Macmillan Company.
芝加哥风格引文Sweetser, Arthur. The League of Nations at Work. New York: Macmillan Company, 1920.
MLA引文Sweetser, Arthur. The League of Nations at Work. Macmillan Company, 1920.
警告：这些引文格式不一定是100％准确.