Dyfyniad APA

Powell, M. (2011). Presenting in English: How to give successful presentations. China: Jason Mann.

Dyfyniad Arddull Chicago

Powell, Mark. Presenting in English: How to Give Successful Presentations. China: Jason Mann, 2011.

Dyfyniad MLA

Powell, Mark. Presenting in English: How to Give Successful Presentations. China: Jason Mann, 2011.

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