Παραπομπή APA

Roddy, D., & Coolen, J. (1989). Electronic communications (3rd ed.). Prentice-Hall of India.

Παραπομπή Chicago Style

Roddy, Dennis, και John Coolen. Electronic Communications. 3rd ed. New Delhi: Prentice-Hall of India, 1989.

Παραπομπή MLA

Roddy, Dennis, και John Coolen. Electronic Communications. 3rd ed. Prentice-Hall of India, 1989.