Black, S. (1993). The essentials of public relations. Kogan Page Ltd.
Chicago Style (17th ed.) CitationBlack, Sam. The Essentials of Public Relations. London: Kogan Page Ltd, 1993.
MLA (8th ed.) CitationBlack, Sam. The Essentials of Public Relations. Kogan Page Ltd, 1993.
Warning: These citations may not always be 100% accurate.