Roddy, D., & Coolen, J. (2000). Electronic communications (4th ed.). Prentice Hall of India.
Chicago Style (17th ed.) ZitazioaRoddy, Dennis, eta John Coolen. Electronic Communications. 4th ed. New Delhi: Prentice Hall of India, 2000.
MLA (9th ed.) ZitazioaRoddy, Dennis, eta John Coolen. Electronic Communications. 4th ed. Prentice Hall of India, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.