Wallace, K. (2011). Implementing Cisco Unified Communications Voice over IP and QoS (Cvoice) Foundation Learning Guide: (CCNP Voice CVoice 642-437) (4th edition.). Cisco Press.
Chicago Style (17th ed.) CitationWallace, Kevin. Implementing Cisco Unified Communications Voice over IP and QoS (Cvoice) Foundation Learning Guide: (CCNP Voice CVoice 642-437). 4th edition. Cisco Press, 2011.
MLA (9th ed.) CitationWallace, Kevin. Implementing Cisco Unified Communications Voice over IP and QoS (Cvoice) Foundation Learning Guide: (CCNP Voice CVoice 642-437). 4th edition. Cisco Press, 2011.
Warning: These citations may not always be 100% accurate.