Cita APA (7a ed.)

Wallace, K. (2008). Authorized Self-Study Guide Cisco Voice over IP (CVOICE), Third Edition (3rd edition.). Cisco Press.

Cita Chicago Style (17a ed.)

Wallace, Kevin. Authorized Self-Study Guide Cisco Voice over IP (CVOICE), Third Edition. 3rd edition. Cisco Press, 2008.

Cita MLA (9a ed.)

Wallace, Kevin. Authorized Self-Study Guide Cisco Voice over IP (CVOICE), Third Edition. 3rd edition. Cisco Press, 2008.