APA

Koop (Ed) ;Prince (Anne), . (1999). Murachs Visual Basic 6. : .

Chicago

Koop (Ed) ;Prince (Anne), . 1999. Murachs Visual Basic 6. : .

Harvard

Koop (Ed) ;Prince (Anne), . (1999). Murachs Visual Basic 6. : .

MLA

Koop (Ed) ;Prince (Anne), . Murachs Visual Basic 6. : . 1999.