Singer, H. W. (1962). Recent trends in economic thought on underdeveloped countries. Research and Statistical Section, Economic Branch, Ministry of Finance and Economics.
芝加哥风格引文Singer, Hans Wolfgang. Recent Trends in Economic Thought on Underdeveloped Countries. Khartoum: Research and Statistical Section, Economic Branch, Ministry of Finance and Economics, 1962.
MLA引文Singer, Hans Wolfgang. Recent Trends in Economic Thought on Underdeveloped Countries. Research and Statistical Section, Economic Branch, Ministry of Finance and Economics, 1962.
警告：这些引文格式不一定是100％准确.