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