APA (7th ed.) Zitazioa
Halvorson, M. (1999). Learn microsoft visual basic 6.0 now. Prentice Hall of India.
Chicago Style (17th ed.) Zitazioa
Halvorson, Michael. Learn Microsoft Visual Basic 6.0 Now. New Delhi: Prentice Hall of India, 1999.
MLA (9th ed.) Zitazioa
Halvorson, Michael. Learn Microsoft Visual Basic 6.0 Now. Prentice Hall of India, 1999.
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