Cita APA (7a ed.)

Wallace, K. (2009). Authorized self-study guide: Cisco Voice over IP (CVOICE) (3rd ed.). Cisco Press.

Cita Chicago Style (17a ed.)

Wallace, Kevin. Authorized Self-study Guide: Cisco Voice over IP (CVOICE). 3rd ed. Indianapolis, Ind.: Cisco Press, 2009.

Cita MLA (8a ed.)

Wallace, Kevin. Authorized Self-study Guide: Cisco Voice over IP (CVOICE). 3rd ed. Cisco Press, 2009.