Cita APA (7th ed.)

Petroutsos, E. (1999). Visual Basic 6. Anaya.

Cita Chicago (17th ed.)

Petroutsos, Evangelos. Visual Basic 6. Madrid: Anaya, 1999.

Cita MLA (9th ed.)

Petroutsos, Evangelos. Visual Basic 6. Anaya, 1999.