Cita APA (7a ed.)

Wray, R. A. (1988). dBase III plus programming. Boyd & Fraser.

Cita Chicago Style (17a ed.)

Wray, Robert A. DBase III Plus Programming. Boston: Boyd & Fraser, 1988.

Cita MLA (9a ed.)

Wray, Robert A. DBase III Plus Programming. Boyd & Fraser, 1988.