APA

Morkes D., . (2000). Visual Basic 6.0. Praha: Computer Press.

Chicago

Morkes David, . 2000. Visual Basic 6.0. Praha: Computer Press.

Harvard

Morkes D., . (2000). Visual Basic 6.0. Praha: Computer Press.

MLA

Morkes David, . Visual Basic 6.0. Praha: Computer Press. 2000.