APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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

Let op: Deze citaties zijn niet altijd 100% accuraat.