(1976). Forecasting For Business Methods And Aplications, Longman Business Series, Douglas Wood, Robert Fildes. Longman.
Chicago-viite (17. p.)Forecasting For Business Methods And Aplications, Longman Business Series, Douglas Wood, Robert Fildes. Longman, 1976.
MLA-viite (8. p.)Forecasting For Business Methods And Aplications, Longman Business Series, Douglas Wood, Robert Fildes. Longman, 1976.
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