Cita APA (7th ed.)

392154 Walker, J. Q., & Hicks, J. T. (2004). Taking charge of your VoIP project. Indianapolis, IN : Cisco Press.

Cita Chicago (17th ed.)

392154 Walker, John Q., i Jeffrey T. Hicks. Taking Charge of Your VoIP Project. Indianapolis, IN : Cisco Press, 2004.

Cita MLA (9th ed.)

392154 Walker, John Q., i Jeffrey T. Hicks. Taking Charge of Your VoIP Project. Indianapolis, IN : Cisco Press, 2004.