APA (7th ed.) Zitazioa

Bellamy, J. C. (1982). Digital telephony. John Wiley.

Chicago Style (17th ed.) Zitazioa

Bellamy, John C. Digital Telephony. Nueva York: John Wiley, 1982.

MLA (9th ed.) Zitazioa

Bellamy, John C. Digital Telephony. John Wiley, 1982.