Cita APA (7a ed.)

Kelly, T. (2005). VoIP for dummies (1st edition.). Wiley Pub.

Cita Chicago Style (17a ed.)

Kelly, Timothy. VoIP for Dummies. 1st edition. Indianapolis, Ind.: Wiley Pub, 2005.

Cita MLA (9a ed.)

Kelly, Timothy. VoIP for Dummies. 1st edition. Wiley Pub, 2005.