Cita APA (7th ed.)

SIMPSON , A. (1986). UNDERSTANDING dBASE III. B P B PUB.

Cita Chicago (17th ed.)

SIMPSON , ALAN. UNDERSTANDING DBASE III. DELHI: B P B PUB, 1986.

Cita MLA (9th ed.)

SIMPSON , ALAN. UNDERSTANDING DBASE III. B P B PUB, 1986.