Black, S. (1996). Practical public relations/4e (4th ed.). Universal Book Stall.
Chicago Edition CitationBlack, Sen. Practical Public Relations/4e. 4th ed. New Delhi: Universal Book Stall, 1996.
Deismireacht MLABlack, Sen. Practical Public Relations/4e. 4th ed. Universal Book Stall, 1996.
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