Lal, A. B. (1981). Inventory models and the problems of price fluctuations: With special reference to a case study of Modi Steels. Shree Pub. House : distributors, Jain Book Depot.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lal, A. B. Inventory Models and the Problems of Price Fluctuations: With Special Reference to a Case Study of Modi Steels. Delhi: Shree Pub. House : distributors, Jain Book Depot, 1981.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Lal, A. B. Inventory Models and the Problems of Price Fluctuations: With Special Reference to a Case Study of Modi Steels. Shree Pub. House : distributors, Jain Book Depot, 1981.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.