APA
(2004). Microsoft visual Basic 6.0 Professional step by step (CD Rom). : N. Delhi, PHI.
Chicago
2004. Microsoft visual Basic 6.0 Professional step by step (CD Rom). : N. Delhi, PHI.
Harvard
(2004). Microsoft visual Basic 6.0 Professional step by step (CD Rom). : N. Delhi, PHI.
MLA
Microsoft visual Basic 6.0 Professional step by step (CD Rom). : N. Delhi, PHI. 2004.
