Cita APA

 Harrington, D. (2009).  Speaking of speech: Basic presentation skills for beginners.  Macmillan Languagehouse Ltd.

Chicago Style Citation

 Harrington, David.  Speaking of Speech: Basic Presentation Skills for Beginners.  Macmillan Languagehouse Ltd, 2009.

Cita MLA

 Harrington, David.  Speaking of Speech: Basic Presentation Skills for Beginners.  Macmillan Languagehouse Ltd, 2009.

Atenció: Aquestes cites poden no estar 100% correctes.