Abramson, A. G., & Mack, R. H. (1956). Business forecasting in practice: Principles and cases. London: John Wiley & Sons.
Παραπομπή Chicago StyleAbramson, Adolph G., and Russell H. Mack. Business Forecasting in Practice: Principles and Cases. London: John Wiley & Sons, 1956.
Παραπομπή MLAAbramson, Adolph G., and Russell H. Mack. Business Forecasting in Practice: Principles and Cases. London: John Wiley & Sons, 1956.
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