APA (7. basım) Alıntı

Elshafei, A. (1969). General Purpose Systems Simulator (GPSS). The Institute of National Planning.

Chicago Style (17. basım) Atıf

Elshafei, Alwalid. General Purpose Systems Simulator (GPSS). Cairo: The Institute of National Planning, 1969.

MLA (9th ed.) Atıf

Elshafei, Alwalid. General Purpose Systems Simulator (GPSS). The Institute of National Planning, 1969.