Cita APA (7th ed.)
Holzner, S. (2000). Visual basic 6 programming: Black book. Wiley; Dreamtech.
Cita Chicago (17th ed.)
Holzner, Steven. Visual Basic 6 Programming: Black Book. New Delhi: Wiley; Dreamtech, 2000.
Cita MLA (9th ed.)
Holzner, Steven. Visual Basic 6 Programming: Black Book. Wiley; Dreamtech, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.