Cita APA

Roddy & Coolen. (1997). Electronic communications (4th ed.). Prentice-Hall of India.

Citación estilo Chicago

Roddy y Coolen. Electronic Communications. 4th ed. New Delhi: Prentice-Hall of India, 1997.

Cita MLA

Roddy y Coolen. Electronic Communications. 4th ed. Prentice-Hall of India, 1997.