Gregory, A. (2008). Planning and managing public relations campaigns (3rd ed.). Kogan Page India Pvt. Ltd..
Dyfyniad Arddull ChicagoGregory, Anne. Planning and Managing Public Relations Campaigns. 3rd ed. New Delhi: Kogan Page India Pvt. Ltd., 2008.
Dyfyniad MLAGregory, Anne. Planning and Managing Public Relations Campaigns. 3rd ed. Kogan Page India Pvt. Ltd., 2008.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.