Elshafei, A. (1969). General Purpose Systems Simulator (GPSS). The Institute of National Planning.
Citación estilo ChicagoElshafei, Alwalid. General Purpose Systems Simulator (GPSS). Cairo: The Institute of National Planning, 1969.
Cita MLAElshafei, Alwalid. General Purpose Systems Simulator (GPSS). The Institute of National Planning, 1969.