Norton, P., & Groh, M. (1998). Guide to Visual Basic 6 (7th Edition.). G. C. Jain.
Cita Chicago (17th ed.)Norton, Peter, i Michael Groh. Guide to Visual Basic 6. 7th Edition. Darya Ganj, New Delhi: G. C. Jain, 1998.
Cita MLA (9th ed.)Norton, Peter, i Michael Groh. Guide to Visual Basic 6. 7th Edition. G. C. Jain, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.