Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.