Cita APA (7th ed.)

Hartman, P. (2000). Teach yourself Visual Basic 6. IDG Books Worldwide.

Cita Chicago (17th ed.)

Hartman, Patricia. Teach Yourself Visual Basic 6. Foster City, Calif: IDG Books Worldwide, 2000.

Cita MLA (9th ed.)

Hartman, Patricia. Teach Yourself Visual Basic 6. IDG Books Worldwide, 2000.