Cita APA (7th ed.)

Bradley, J. (2000). Programming in visual basic 6.0- 2009. T M H.

Cita Chicago (17th ed.)

Bradley, Julia. Programming in Visual Basic 6.0- 2009. New Delhi: T M H, 2000.

Cita MLA (9th ed.)

Bradley, Julia. Programming in Visual Basic 6.0- 2009. T M H, 2000.