APA način citiranja (7. izdanje)

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

Čikaški stil citiranja (17. izdanje)

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

MLA način citiranja (9. izdanje)

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

Upozorenje: Ovi citati možda nisu uvijek 100% točni.