Hanke, J. E., Reitsch, A. G., & Wichern, D. W. (2001). Business forecasting (7th ed.). Prentice Hall.
Cita Chicago (17th ed.)Hanke, John E., Arthur G. Reitsch, i Dean W. Wichern. Business Forecasting. 7th ed. Upper Saddle River, N.J: Prentice Hall, 2001.
Cita MLA (9th ed.)Hanke, John E., et al. Business Forecasting. 7th ed. Prentice Hall, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.