Cita APA (7th ed.)
Du Plooy G. M. (2009). Communication research: Techniques, methods and applications (2nd ed.). Juta & Co, Ltd..
Cita Chicago (17th ed.)
Du Plooy G. M. Communication Research: Techniques, Methods and Applications. 2nd ed. Cape Town: Juta & Co, Ltd., 2009.
Cita MLA (9th ed.)
Du Plooy G. M. Communication Research: Techniques, Methods and Applications. 2nd ed. Juta & Co, Ltd., 2009.
Atenció: Aquestes cites poden no estar 100% correctes.