Cita APA (7th ed.)
Kelly, J. (2007). Communication skill. Global Media.
Cita Chicago (17th ed.)
Kelly, Joshua. Communication Skill. Chandni Chowk, Delhi: Global Media, 2007.
Cita MLA (9th ed.)
Kelly, Joshua. Communication Skill. Global Media, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.