Dyfyniad APA

Williams, E. J. (2008). Presentations in english: Find your voice as a presenter. Oxford: Macmillan.

Dyfyniad Arddull Chicago

Williams, Erica J. Presentations in English: Find Your Voice As a Presenter. Oxford: Macmillan, 2008.

Dyfyniad MLA

Williams, Erica J. Presentations in English: Find Your Voice As a Presenter. Oxford: Macmillan, 2008.

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