APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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

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