Ramo, S., & Sugar, R. (2009). Strategic business forecasting: A structured approach to shaping the future of your business. McGraw-Hill.
Chicago-viite (17. p.)Ramo, Simon, ja Ronald Sugar. Strategic Business Forecasting: A Structured Approach to Shaping the Future of Your Business. New York: McGraw-Hill, 2009.
MLA-viite (9. p.)Ramo, Simon, ja Ronald Sugar. Strategic Business Forecasting: A Structured Approach to Shaping the Future of Your Business. McGraw-Hill, 2009.
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