Dyfyniad APA
Wilcox, D. L. (1995). Public relations: Writing and media techniques (2nd.ed.). Harper Collins.
Dyfyniad Arddull Chicago
Wilcox, Dennis L. Public Relations: Writing and Media Techniques. 2nd.ed. New York: Harper Collins, 1995.
Dyfyniad MLA
Wilcox, Dennis L. Public Relations: Writing and Media Techniques. 2nd.ed. Harper Collins, 1995.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.