Drummond, H. (1993). Effective decision making: A practical guide for management. Wheeler Publishishing.
استشهاد بنمط شيكاغوDrummond, Helga. Effective Decision Making: A Practical Guide for Management. Allahabad: Wheeler Publishishing, 1993.
MLA استشهادDrummond, Helga. Effective Decision Making: A Practical Guide for Management. Wheeler Publishishing, 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.