APA
Koop E., Prince A. & Murach J. (1999). Murach's Visual Basic 6. New Delhi: BPB Publications.
Chicago
Koop Ed, Prince Anne and Murach Joel. 1999. Murach's Visual Basic 6. New Delhi: BPB Publications.
Harvard
Koop E., Prince A. and Murach J. (1999). Murach's Visual Basic 6. New Delhi: BPB Publications.
MLA
Koop Ed, Prince Anne and Murach Joel. Murach's Visual Basic 6. New Delhi: BPB Publications. 1999.