Dyfyniad APA

Griffin, C. L. (2015). Invitation to public speaking (5e.). Cengage Learning.

Dyfyniad Arddull Chicago

Griffin, Cindy L. Invitation to Public Speaking. 5e. Stamford, [Connecticut]: Cengage Learning, 2015.

Dyfyniad MLA

Griffin, Cindy L. Invitation to Public Speaking. 5e. Cengage Learning, 2015.

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