APA استشهاد

Roddy, D. C. (2011). Electronic communication (4.).

استشهاد بنمط شيكاغو

Roddy, Dennis; Coolen. Electronic Communication. 4. Prentice - Hall of India, Pvt. ltd., New Delhi, 2011.

MLA استشهاد

Roddy, Dennis; Coolen. Electronic Communication. 4. 2011.