APA (7th ed.) Citation

Bellamy, J. C. (2000). Digital telephony (3a. ed.). John Wiley and Sons.

Chicago Style (17th ed.) Citation

Bellamy, John C. Digital Telephony. 3a. ed. Nueva York: John Wiley and Sons, 2000.

MLA (9th ed.) Citation

Bellamy, John C. Digital Telephony. 3a. ed. John Wiley and Sons, 2000.