APA (7th ed.) Citation

Roddy, D., & Coolen, J. (1984). Electronic communications (3rd ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Roddy, Dennis, and John Coolen. Electronic Communications. 3rd ed. London: Prentice-Hall, 1984.

MLA (9th ed.) Citation

Roddy, Dennis, and John Coolen. Electronic Communications. 3rd ed. Prentice-Hall, 1984.