Flanagan, W. A. (2012). VoIP and unified communications: Internet telephony and the future voice network. John Wiley and Sons, Inc.
Citace podle Chicago (17th ed.)Flanagan, William A. VoIP and Unified Communications: Internet Telephony and the Future Voice Network. Hoboken: John Wiley and Sons, Inc, 2012.
Citace podle MLA (9th ed.)Flanagan, William A. VoIP and Unified Communications: Internet Telephony and the Future Voice Network. John Wiley and Sons, Inc, 2012.
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