Cita APA (7th ed.)

Roddy, D., & Coolen, J. (2000). Electronic communications (4th ed.). Prentice Hall of India.

Cita Chicago (17th ed.)

Roddy, Dennis, i John Coolen. Electronic Communications. 4th ed. New Delhi: Prentice Hall of India, 2000.

Cita MLA (9th ed.)

Roddy, Dennis, i John Coolen. Electronic Communications. 4th ed. Prentice Hall of India, 2000.