APA-viite (7. p.)

Bellamy John. (1991). Digital Telephony (2nd ed.). Wiley.

Chicago-viite (17. p.)

Bellamy John. Digital Telephony. 2nd ed. New York: Wiley, 1991.

MLA-viite (9. p.)

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