Cita APA (7a ed.)
Halvorson, M. (1999). Learn microsoft visual basic 6.0 now. Prentice Hall of India.
Cita Chicago Style (17a ed.)
Halvorson, Michael. Learn Microsoft Visual Basic 6.0 Now. New Delhi: Prentice Hall of India, 1999.
Cita MLA (9a ed.)
Halvorson, Michael. Learn Microsoft Visual Basic 6.0 Now. Prentice Hall of India, 1999.
Precaución: Estas citas no son 100% exactas.