Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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