Ord, J. K., & Fildes, R. (2013). Principles of business forecasting. South-Western Cengage Learning.
استشهاد بنمط شيكاغوOrd, J. K., و Robert Fildes. Principles of Business Forecasting. Mason, OH: South-Western Cengage Learning, 2013.
MLA استشهادOrd, J. K., و Robert Fildes. Principles of Business Forecasting. South-Western Cengage Learning, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.