Harwood, E. C. (1957). Cause and control of the business cycle (5th ed.). American Institute for Economic Research.
芝加哥风格引文Harwood, Edward Crosby. Cause and Control of the Business Cycle. 5th ed. Great Barrington, Mass.: American Institute for Economic Research, 1957.
MLA引文Harwood, Edward Crosby. Cause and Control of the Business Cycle. 5th ed. American Institute for Economic Research, 1957.
警告：这些引文格式不一定是100％准确.