Cita APA

Roddy, D., & Coolen, J. (2008). Electronic communications (4th ed.). Pearson..

Chicago Edition Citation

Roddy, Dennis, i John Coolen. Electronic Communications. 4th ed. Nioda.: Pearson., 2008.

Cita MLA

Roddy, Dennis, i John Coolen. Electronic Communications. 4th ed. Pearson., 2008.