Cita APA (7th ed.)
Stultz, R. A. (1989). Illustrated dBASE IV. BPB.
Cita Chicago (17th ed.)
Stultz, Russell A. Illustrated DBASE IV. New Delhi: BPB, 1989.
Cita MLA (9th ed.)
Stultz, Russell A. Illustrated DBASE IV. BPB, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.