el-hefny, a. (1964). forecasting for management of seasonal goods inventories. National Planning Institute.
Cita Chicago (17th ed.)el-hefny, amina. Forecasting for Management of Seasonal Goods Inventories. cairo: National Planning Institute, 1964.
Cita MLA (9th ed.)el-hefny, amina. Forecasting for Management of Seasonal Goods Inventories. National Planning Institute, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.