APA (7th ed.) Citation

Gurewich, N., & Gurewich, O. (1997). Teach yourself Visual Basic 5 in 21 days (Professional reference ed.). Sams Pub..

Chicago Style (17th ed.) Citation

Gurewich, Nathan, and Ori Gurewich. Teach Yourself Visual Basic 5 in 21 Days. Professional reference ed. Indianapolis, Ind.: Sams Pub., 1997.

MLA (9th ed.) Citation

Gurewich, Nathan, and Ori Gurewich. Teach Yourself Visual Basic 5 in 21 Days. Professional reference ed. Sams Pub., 1997.