Dyfyniad APA
Wilcox, D. L. (2004). Public relations: Writing and media techniques (5th ed.). Pearson.
Dyfyniad Arddull Chicago
Wilcox, Dennis L. Public Relations: Writing and Media Techniques. 5th ed. Boston: Pearson, 2004.
Dyfyniad MLA
Wilcox, Dennis L. Public Relations: Writing and Media Techniques. 5th ed. Pearson, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.