Cita APA (7th ed.)

Dickey, B. (1986). dBase III for sales professionals. Ashton-Tate Publishing Group.

Cita Chicago (17th ed.)

Dickey, Bill. DBase III for Sales Professionals. California: Ashton-Tate Publishing Group, 1986.

Cita MLA (9th ed.)

Dickey, Bill. DBase III for Sales Professionals. Ashton-Tate Publishing Group, 1986.