Solow, R. M. (1964). The nature and sources of unemployment in the United States. Almqivst & Wicksell.
芝加哥风格引文Solow, Robert M. The Nature and Sources of Unemployment in the United States. Stockholm: Almqivst & Wicksell, 1964.
MLA引文Solow, Robert M. The Nature and Sources of Unemployment in the United States. Almqivst & Wicksell, 1964.
警告：这些引文格式不一定是100％准确.