Elshafei, A. (1969). Analysis of A Two-Channel Queuing Model: ( A Simulation Approach ). The Institute of National Planning.
Чикаго стиль цитування (17-те видання)Elshafei, Alwalid. Analysis of A Two-Channel Queuing Model: ( A Simulation Approach ). Cairo: The Institute of National Planning, 1969.
Стиль цитування MLA (9-ме видання)Elshafei, Alwalid. Analysis of A Two-Channel Queuing Model: ( A Simulation Approach ). The Institute of National Planning, 1969.