Dyfyniad APA

Griffin, E. A. (2003). A first look at communication theory (5th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Griffin, Emory A. A First Look at Communication Theory. 5th ed. Boston: McGraw-Hill, 2003.

Dyfyniad MLA

Griffin, Emory A. A First Look at Communication Theory. 5th ed. McGraw-Hill, 2003.

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