(1991). Forecasting And Management Of Technology Alan L.porter .. Et. All. John Wiley & Sons.
Chicago-viite (17. p.)Forecasting And Management Of Technology Alan L.porter .. Et. All. John Wiley & Sons, 1991.
MLA-viite (8. p.)Forecasting And Management Of Technology Alan L.porter .. Et. All. John Wiley & Sons, 1991.
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