एपीए उद्धरण

Bellamy, J. C. (1982). Digital telephony. New York: John Wiley and Sons.

शिकागो स्टाइल उद्धरण

Bellamy, John C. Digital Telephony. New York: John Wiley and Sons, 1982.

एमएलए उद्धरण

Bellamy, John C. Digital Telephony. New York: John Wiley and Sons, 1982.