Dyfyniad APA

Dunn, J., & Crawshaw, G. (2005). Successful public relations. Longman, Viva Books.

Dyfyniad Arddull Chicago

Dunn, Jim, and Gerry Crawshaw. Successful Public Relations. London : New Delhi: Longman, Viva Books, 2005.

Dyfyniad MLA

Dunn, Jim, and Gerry Crawshaw. Successful Public Relations. Longman, Viva Books, 2005.

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