Dyfyniad APA

Stephen E. Lucas. (2007). The art of public speaking: Student CD-ROM Version 5.0. Boston: McGraw-Hill.

Dyfyniad Arddull Chicago

Stephen E. Lucas. The Art of Public Speaking: Student CD-ROM Version 5.0. Boston: McGraw-Hill, 2007.

Dyfyniad MLA

Stephen E. Lucas. The Art of Public Speaking: Student CD-ROM Version 5.0. Boston: McGraw-Hill, 2007.

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