Cita APA (7th ed.)

PERRY GREG. (1998). TEACH YOURSELF VISUAL BASIC 6 IN 21 DAYS. TECHMEDIA.

Cita Chicago (17th ed.)

PERRY GREG. TEACH YOURSELF VISUAL BASIC 6 IN 21 DAYS. NEW DELHI: TECHMEDIA, 1998.

Cita MLA (9th ed.)

PERRY GREG. TEACH YOURSELF VISUAL BASIC 6 IN 21 DAYS. TECHMEDIA, 1998.