Gilliland, M., Sglavo, U., & Tashman, L. (2015). Business forecasting: Practical problems and solutions. Wiley.
Chicago Style (17th ed.) ZitazioaGilliland, Michael, Udo Sglavo, eta Len Tashman. Business Forecasting: Practical Problems and Solutions. Hoboken, New Jersey: Wiley, 2015.
MLA (9th ed.) ZitazioaGilliland, Michael, et al. Business Forecasting: Practical Problems and Solutions. Wiley, 2015.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.