Speaking Clearly

Hahner, J., Salisch, S., Sokoloff, M. Speaking Clearly, McGraw-Hill, 1993, 434 p., 0-07-025825-2.

Hahner, J., Salisch, S., Sokoloff, M. (1993) Speaking Clearly, New York: McGraw-Hill, 434 p., 0-07-025825-2

Hahner, J., Salisch, S., & Sokoloff, M. (1993). Speaking Clearly. Improving Voice and Diction. New York: McGraw-Hill, 434 p..