Cita APA (7th ed.)

Stearns, T., & Stearns, L. Visual FoxPro programming basics.

Cita Chicago (17th ed.)

Stearns, Tom, i Leonard Stearns. Visual FoxPro Programming Basics.

Cita MLA (9th ed.)

Stearns, Tom, i Leonard Stearns. Visual FoxPro Programming Basics.

Atenció: Aquestes cites poden no estar 100% correctes.