APA (7th ed.) Citation

PETROULSOS, E. (1998). VISUAL BASIC 6. BPB.

Chicago Style (17th ed.) Citation

PETROULSOS, E. VISUAL BASIC 6. NEW DELHI: BPB, 1998.

MLA (9th ed.) Citation

PETROULSOS, E. VISUAL BASIC 6. BPB, 1998.