एपीए उद्धरण

Swale, R. (2002). Voice over IP: Systems and solutions. The Institution of Electrical Engineers.

शिकागो स्टाइल उद्धरण

Swale, Richard. Voice over IP: Systems and Solutions. London: The Institution of Electrical Engineers, 2002.

एमएलए उद्धरण

Swale, Richard. Voice over IP: Systems and Solutions. The Institution of Electrical Engineers, 2002.