APA (7th ed.) Citation

Bellamy John. (1991). Digital telephony (2nd ed.). Wiley, J.

Chicago Style (17th ed.) Citation

Bellamy John. Digital Telephony. 2nd ed. Wiley, J, 1991.

MLA (8th ed.) Citation

Bellamy John. Digital Telephony. 2nd ed. Wiley, J, 1991.

Warning: These citations may not always be 100% accurate.