Cita APA (7th ed.)

Ross, S. C. (1987). Understanding and Using dBase III Plus. West Publishing Co.

Cita Chicago (17th ed.)

Ross, Steven C. Understanding and Using DBase III Plus. St. Paul: West Publishing Co, 1987.

Cita MLA (9th ed.)

Ross, Steven C. Understanding and Using DBase III Plus. West Publishing Co, 1987.