APA (7 वां संस्करण) प्रशस्ति पत्र

Elshafei, W., & Mahdy, M. (1968). On Determining Reorder Point and Reorder Quantity in A Probabilistic Inventory Model. The Institute of National Planning.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Elshafei, W.A.M, और M.A.M Mahdy. On Determining Reorder Point and Reorder Quantity in A Probabilistic Inventory Model. Cairo: The Institute of National Planning, 1968.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Elshafei, W.A.M, और M.A.M Mahdy. On Determining Reorder Point and Reorder Quantity in A Probabilistic Inventory Model. The Institute of National Planning, 1968.

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