Παραπομπή APA

Balena, F. (2001). Programming microsoft visual basic 6.0. WP Publishers and Distributors (P) Ltd.

Παραπομπή Chicago Style

Balena, Francesco. Programming Microsoft Visual Basic 6.0. Bangalore: WP Publishers and Distributors (P) Ltd, 2001.

Παραπομπή MLA

Balena, Francesco. Programming Microsoft Visual Basic 6.0. WP Publishers and Distributors (P) Ltd, 2001.