Hahner, J. C. (2002). Speaking Clearly: Improving voice and diction. New York: McGraw-Hill.
Chicago Style CitationHahner, Jeffrey C. Speaking Clearly: Improving Voice and Diction. New York: McGraw-Hill, 2002.
Cita MLAHahner, Jeffrey C. Speaking Clearly: Improving Voice and Diction. New York: McGraw-Hill, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.