APA-referens (7:e uppl.)

Roddy, D. (2004). Electronic communications (4.). Prentice Hall of India.

Chicago-referens (17:e uppl.)

Roddy, Dennis. Electronic Communications. 4. New Delhi: Prentice Hall of India, 2004.

MLA-referens (9:e uppl.)

Roddy, Dennis. Electronic Communications. 4. Prentice Hall of India, 2004.