APA (7th ed.) Citation

Holzner. (1999). Visual basic 6 core language little black book. A Coriolis Book.

Chicago Style (17th ed.) Citation

Holzner. Visual Basic 6 Core Language Little Black Book. New York: A Coriolis Book, 1999.

MLA (8th ed.) Citation

Holzner. Visual Basic 6 Core Language Little Black Book. A Coriolis Book, 1999.