Cita APA (7th ed.)

SIMPSON ALAN. (1988). DBASE INSTANT REFERENCE. BPB PUBLICATIONS.

Cita Chicago (17th ed.)

SIMPSON ALAN. DBASE INSTANT REFERENCE. NEW DELHI: BPB PUBLICATIONS, 1988.

Cita MLA (9th ed.)

SIMPSON ALAN. DBASE INSTANT REFERENCE. BPB PUBLICATIONS, 1988.