Microsoft Visual Basic .net : step by step.

MLA

Halvorson, Michael. Microsoft Visual Basic .net : Step by Step. Redmond: Microsoft, 2002.

APA

Halvorson, M. (2002). Microsoft Visual Basic .net : step by step. Redmond: Microsoft.

Chicago

Halvorson, Michael, Microsoft Visual Basic .net: Step by Step. Redmond: Microsoft, 2002.