APA (7th ed.) Citation

Roddy, D., & By , C. (1995). Electronic communications (4th ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

Roddy, Dennis, and Coolen By. Electronic Communications. 4th ed. New Delhi: Prentice Hall, 1995.

MLA (9th ed.) Citation

Roddy, Dennis, and Coolen By. Electronic Communications. 4th ed. Prentice Hall, 1995.