Prem Kumar Gupta, D. (2009). Problems in operations research: Principles and solutions. S. Chand.
استشهاد بنمط شيكاغوPrem Kumar Gupta, D.S. Problems in Operations Research: Principles and Solutions. New Delhi: S. Chand, 2009.
MLA استشهادPrem Kumar Gupta, D.S. Problems in Operations Research: Principles and Solutions. S. Chand, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.