Harwood, E. C. (1957). Cause and control of the business cycle ([5th ed.].). American Institute for Economic Research.
Čikaški stil citiranja (17. izdanje)Harwood, Edward Crosby. Cause and Control of the Business Cycle. [5th ed.]. Great Barrington, Mass: American Institute for Economic Research, 1957.
MLA način citiranja (9. izdanje)Harwood, Edward Crosby. Cause and Control of the Business Cycle. [5th ed.]. American Institute for Economic Research, 1957.
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