WILSON J HOLTON. (2002). BUSINESS FORECASTING WITH ACCOMPANYING EXCEL BASED FORECAST XTM SOFTWARE - CD (4TH.). MCGRAW-HILL.
Chicago-viite (17. p.)WILSON J HOLTON. BUSINESS FORECASTING WITH ACCOMPANYING EXCEL BASED FORECAST XTM SOFTWARE - CD. 4TH. BOSTON: MCGRAW-HILL, 2002.
MLA-viite (9. p.)WILSON J HOLTON. BUSINESS FORECASTING WITH ACCOMPANYING EXCEL BASED FORECAST XTM SOFTWARE - CD. 4TH. MCGRAW-HILL, 2002.
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