APA

Holzner (Steven), . (2000). Visual Basic 6 Core Language: Little Black Book. : .

Chicago

Holzner (Steven), . 2000. Visual Basic 6 Core Language: Little Black Book. : .

Harvard

Holzner (Steven), . (2000). Visual Basic 6 Core Language: Little Black Book. : .

MLA

Holzner (Steven), . Visual Basic 6 Core Language: Little Black Book. : . 2000.