Keagy, S. (2000). Integrating voice and data networks. Cisco Systems.
Lua i Stíl Chicago (17ú heag.)Keagy, Scott. Integrating Voice and Data Networks. Cisco Systems, 2000.
Lua MLA (8ú heag.)Keagy, Scott. Integrating Voice and Data Networks. Cisco Systems, 2000.
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