Cita APA (7th ed.)

(1986). Fourth and fifth generation programming languages / by Dimitris N. Chorafas.

Cita Chicago (17th ed.)

Fourth and Fifth Generation Programming Languages / by Dimitris N. Chorafas. 1986.

Cita MLA (9th ed.)

Fourth and Fifth Generation Programming Languages / by Dimitris N. Chorafas. 1986.

Atenció: Aquestes cites poden no estar 100% correctes.