Hahner, J. C. (2004). Speaking clearly: Improving voice and diction. Boston: McGraw-Hill.
Chicago Style CitationHahner, Jeffrey C. Speaking Clearly: Improving Voice and Diction. Boston: McGraw-Hill, 2004.
Cita MLAHahner, Jeffrey C. Speaking Clearly: Improving Voice and Diction. Boston: McGraw-Hill, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.