Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.