Cita APA (7a ed.)
Pettorino, M. (2010). Spoken communication. Cambridge Scholars.
Cita Chicago Style (17a ed.)
Pettorino, Massimo. Spoken Communication. Newcastle upon Tyne: Cambridge Scholars, 2010.
Cita MLA (9a ed.)
Pettorino, Massimo. Spoken Communication. Cambridge Scholars, 2010.
警告：這些引文格式不一定是100％准確.