APA

Petroutsos (Evangelos), . (2001). Mastering Visual Basic 6. : .

Chicago

Petroutsos (Evangelos), . 2001. Mastering Visual Basic 6. : .

Harvard

Petroutsos (Evangelos), . (2001). Mastering Visual Basic 6. : .

MLA

Petroutsos (Evangelos), . Mastering Visual Basic 6. : . 2001.