BLACK, U. (2002). Voice over IP. Prentice Hall.
Chicago Style (17th ed.) CitationBLACK, Uyless. Voice over IP. Prentice Hall, 2002.
MLA (8th ed.) CitationBLACK, Uyless. Voice over IP. Prentice Hall, 2002.
Warning: These citations may not always be 100% accurate.