APA (7th ed.) Citation

Mackenzie, D., & Sharkey, K. (2002). Sams teach yourself Visual Basic.NET in 21 days. Sams.

Chicago Style (17th ed.) Citation

Mackenzie, Duncan, and Kent Sharkey. Sams Teach Yourself Visual Basic.NET in 21 Days. Indianapolis, Ind: Sams, 2002.

MLA (9th ed.) Citation

Mackenzie, Duncan, and Kent Sharkey. Sams Teach Yourself Visual Basic.NET in 21 Days. Sams, 2002.

Warning: These citations may not always be 100% accurate.