Dyfyniad APA

Gordon, J. (2005). Presentations that change minds. McGraw Hill.

Dyfyniad Arddull Chicago

Gordon, Josh. Presentations That Change Minds. NewYork: McGraw Hill, 2005.

Dyfyniad MLA

Gordon, Josh. Presentations That Change Minds. McGraw Hill, 2005.

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