Dyfyniad APA

Lucas, S. (2001). The art of public speaking (7th ed.). Boston, Mass.: McGraw Hill.

Dyfyniad Arddull Chicago

Lucas, Stephen. The Art of Public Speaking. 7th ed. Boston, Mass.: McGraw Hill, 2001.

Dyfyniad MLA

Lucas, Stephen. The Art of Public Speaking. 7th ed. Boston, Mass.: McGraw Hill, 2001.

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