Dyfyniad APA

Lesley, P. (1991). Handbook of public relations and communications (4th ed.). Jaico.

Dyfyniad Arddull Chicago

Lesley, Philip. Handbook of Public Relations and Communications. 4th ed. New Delhi: Jaico, 1991.

Dyfyniad MLA

Lesley, Philip. Handbook of Public Relations and Communications. 4th ed. Jaico, 1991.

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