Black, S. (1996). Practical public relations/4e (4th ed.). Universal Book Stall.
Style de citation ChicagoBlack, Sen. Practical Public Relations/4e. 4th ed. New Delhi: Universal Book Stall, 1996.
Style de citation MLABlack, Sen. Practical Public Relations/4e. 4th ed. Universal Book Stall, 1996.
Attention : ces citations peuvent ne pas être correctes à 100%.