MAKRIDAKIS, S. (1983). Forecasting. John Wiley.
Lua i Stíl Chicago (17ú heag.)MAKRIDAKIS, Spyros. Forecasting. John Wiley, 1983.
Lua MLA (8ú heag.)MAKRIDAKIS, Spyros. Forecasting. John Wiley, 1983.
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