APA (7th ed.) Zitazioa

Petroutsos, E. (1998). Mastering visual basic 6. BPB.

Chicago Style (17th ed.) Zitazioa

Petroutsos, Evangclos. Mastering Visual Basic 6. New Delhi: BPB, 1998.

MLA (9th ed.) Zitazioa

Petroutsos, Evangclos. Mastering Visual Basic 6. BPB, 1998.