Cita APA (7th ed.)

Roddy, D. (2013). Electronic communications (4th.). Pearson publication.

Cita Chicago (17th ed.)

Roddy, D. Electronic Communications. 4th. Delhi: Pearson publication, 2013.

Cita MLA (9th ed.)

Roddy, D. Electronic Communications. 4th. Pearson publication, 2013.