Παραπομπή APA

Kogent Solutions. (2009). Visual Basic 2008 programming: Black book. Dreamtech press.

Παραπομπή Chicago Style

Kogent Solutions. Visual Basic 2008 Programming: Black Book. New Delhi: Dreamtech press, 2009.

Παραπομπή MLA

Kogent Solutions. Visual Basic 2008 Programming: Black Book. Dreamtech press, 2009.