Valentine, Lloyd M.
Business cycles and forecasting
South-Western Publishing, 1991
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Bowers, David A.
An introduction to business cycles and forecasting
Addison-Wesley, 1985
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Bratt, Elmer C.
Business cycles and forecasting
Richard D. Irwin, 1953
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Gordon, Robert Aaron
Business fluctuations
Harper & Brothers, 1952
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Hald, Earl C.
Business cycles
Houghton-Mifflin, 1954
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