Gurewich,Nathan, & Gurewich,Ori. (1997). Teach yourself visual basic 5 in 21 days. Tech Media.
Chicago Style aipamenaGurewich,Nathan, and Gurewich,Ori. Teach Yourself Visual Basic 5 in 21 Days. New Delhi: Tech Media, 1997.
MLA aipamenaGurewich,Nathan, and Gurewich,Ori. Teach Yourself Visual Basic 5 in 21 Days. Tech Media, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.