Lesley, P. (1991). Handbook of public relations and communications (4th ed.). Jaico.
Παραπομπή Chicago StyleLesley, Philip. Handbook of Public Relations and Communications. 4th ed. New Delhi: Jaico, 1991.
Παραπομπή MLALesley, Philip. Handbook of Public Relations and Communications. 4th ed. Jaico, 1991.
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