Cita APA (7th ed.)

(1987). Understanding and using dBASE III Plus / Rob Krumm.

Cita Chicago (17th ed.)

Understanding and Using DBASE III Plus / Rob Krumm. 1987.

Cita MLA (9th ed.)

Understanding and Using DBASE III Plus / Rob Krumm. 1987.

Atenció: Aquestes cites poden no estar 100% correctes.