Dyfyniad APA

Hahner, J. C. (2002). Speech Lab CD to accompany: Speaking clearly. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Hahner, Jeffrey C. Speech Lab CD to Accompany: Speaking Clearly. New York: McGraw-Hill, 2002.

Dyfyniad MLA

Hahner, Jeffrey C. Speech Lab CD to Accompany: Speaking Clearly. New York: McGraw-Hill, 2002.

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