APA (7th ed.) Citation
Mackenzie, D., & Sharkey, K. (2002). Sams teach yourself Visual Basic .NET in 21 days. Technomedia.
Chicago Style (17th ed.) Citation
Mackenzie, Duncan, and Kent Sharkey. Sams Teach Yourself Visual Basic .NET in 21 Days. New Delhi: Technomedia, 2002.
MLA (9th ed.) Citation
Mackenzie, Duncan, and Kent Sharkey. Sams Teach Yourself Visual Basic .NET in 21 Days. Technomedia, 2002.
Warning: These citations may not always be 100% accurate.