Citazione Stile APA (7a Edizione)

Elshafei, W., & Abd Elrazek, A. (1968). On Estimating Lot Size for A Variable Lifetime Stock Items. The Institute of National Planning.

Citazione stile Chigago Style (17a edizione)

Elshafei, W.A.M, e A.H Abd Elrazek. On Estimating Lot Size for A Variable Lifetime Stock Items. Cairo: The Institute of National Planning, 1968.

Citatione MLA (9a ed.)

Elshafei, W.A.M, e A.H Abd Elrazek. On Estimating Lot Size for A Variable Lifetime Stock Items. The Institute of National Planning, 1968.