VALENTINE, L. M., & VALENTINE, L. M. (1983). Business Cycles And Forecasting Lloyd M. Valentine And Carl A. Dauten. South-Western Publishing Co..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVALENTINE, Lloyd M., और Lloyd M. VALENTINE. Business Cycles And Forecasting Lloyd M. Valentine And Carl A. Dauten. South-Western Publishing Co., 1983.
एमएलए (8वां संस्करण) प्रशस्ति पत्रVALENTINE, Lloyd M., और Lloyd M. VALENTINE. Business Cycles And Forecasting Lloyd M. Valentine And Carl A. Dauten. South-Western Publishing Co., 1983.
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