Black, S. (1996). Practical public relations/4e (4th ed.). Universal Book Stall.
Citación estilo ChicagoBlack, Sen. Practical Public Relations/4e. 4th ed. New Delhi: Universal Book Stall, 1996.
Cita MLABlack, Sen. Practical Public Relations/4e. 4th ed. Universal Book Stall, 1996.
Warning: These citations may not always be 100% accurate.