Cita APA (7th ed.)
Fong, P. J. (2002). Configuring Cisco voice over IP (2nd ed.). Syngress Media.
Cita Chicago (17th ed.)
Fong, Paul J. Configuring Cisco Voice over IP. 2nd ed. Rockland: Syngress Media, 2002.
Cita MLA (9th ed.)
Fong, Paul J. Configuring Cisco Voice over IP. 2nd ed. Syngress Media, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.