APA (7th ed.) Zitazioa

Flanagan, W. A. (2012). VoIP and unified communications: Internet telephony and the future voice network. John Wiley and Sons, Inc.

Chicago Style (17th ed.) Zitazioa

Flanagan, William A. VoIP and Unified Communications: Internet Telephony and the Future Voice Network. Hoboken: John Wiley and Sons, Inc, 2012.

MLA (9th ed.) Zitazioa

Flanagan, William A. VoIP and Unified Communications: Internet Telephony and the Future Voice Network. John Wiley and Sons, Inc, 2012.