APA ציטוט

Hahner, J. C. (2002). Speaking clearly: Improving voice and diction. New York: McGraw-Hill.

Trích dẫn kiểu Chicago

Hahner, Jeffrey C. Speaking Clearly: Improving Voice and Diction. New York: McGraw-Hill, 2002.

ציטוט MLA

Hahner, Jeffrey C. Speaking Clearly: Improving Voice and Diction. New York: McGraw-Hill, 2002.